Faculty Profiles - NAKAMURA, Masanao

Papers - NAKAMURA, Masanao

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Novel EMR Technique for Preoperative Diagnosis and Treatment of Submucosal Tumor in the Small Bowel at Double-Balloon Endoscopy

Nakamura Masanao, Watanabe Osamu, Yamamura Takeshi, Matsushita Masanobu, Oshima Hiroshi, Sato Junichi, Saito Masashi, Matsuura Rinzaburo, Mizutani Yasuyuki, Sawada Tsunaki, Niwa Yoshiki, Ishikawa Eri, Uchida Genta, Otsuka Hiroyuki, Suzuki Hiroto, Nishikawa Takahiro, Ishida Tetsuya, Ishikawa Takuya, Furukawa Kazuhiro, Funasaka Kohei, Ohno Eizaburo, Kawashima Hiroki, Miyahara Ryoji, Goto Hidemi, Hirooka Yoshiki

GASTROINTESTINAL ENDOSCOPY Vol. 85 ( 5 ) page： AB300 - AB300 2017.5

Objective Assessment of Jejunal Villous Blood Flow for Evaluating Pancreas-Jejunum Functional Correlation Using a Novel Image Analyzing System

Takeyama Tomoaki, Hirooka Yoshiki, Kawashima Hiroki, Ohno Eizaburo, Ishikawa Takuya, Kawai Manabu, Suhara Hiroki, Hashizume Kiyotaka, Koya Toshinari, Tanaka Hiroyuki, Sakai Daisuke, Matsushita Masanobu, Yamamura Takeshi, Furukawa Kazuhiro, Funasaka Kohei, Nakamura Masanao, Miyahara Ryoji, Watanabe Osamu, Goto Hidemi

GASTROINTESTINAL ENDOSCOPY Vol. 85 ( 5 ) page： AB319 - AB320 2017.5

Clinical Factors Related to False Positive Rates of Patency Capsule Examination

Sawada Tsunaki, Nakamura Masanao, Watanabe Osamu, Yamamura Takeshi, Matsushita Masanobu, Oshima Hiroshi, Sato Junichi, Saito Masashi, Matsuura Rinzaburo, Mizutani Yasuyuki, Niwa Yoshiki, Ishikawa Eri, Uchida Genta, Otsuka Hiroyuki, Suzuki Hiroto, Nishikawa Takahiro, Ishida Tetsuya, Ishikawa Takuya, Furukawa Kazuhiro, Funasaka Kohei, Ohno Eizaburo, Miyahara Ryoji, Kawashima Hiroki, Goto Hidemi, Hirooka Yoshiki

GASTROINTESTINAL ENDOSCOPY Vol. 85 ( 5 ) page： AB305 - AB305 2017.5

Prospective, Multicenter Study for Evaluation of the Clinical Efficacy and Safety of Pillcam Patency Capsule in 1,096 Cases With Suspected Small Bowel Stenosis

Nakamura Masanao, Watanabe Kenji, Ohmiya Naoki, Hirai Fumihito, Omori Teppei, Tokuhara Daisuke, Nakaji Konosuke, Nouda Sadaharu, Washio Ema, Sameshima Yukinori, Mannami Tomohiko, Maeda Kohei, Ninomiya Kazeo, Wakamatsu Takahiro, Araki Akihiro, Ishii Manabu, Higaki Shingo, Abe Takashi, Handa Osamu, Kawano Seiji, Iwamoto Maho, Kato Shingo, Kagaya Takashi, Goto Hidemi, Matsui Toshiyuki

GASTROINTESTINAL ENDOSCOPY Vol. 85 ( 5 ) page： AB53 - AB53 2017.5

A Nationwide Multicenter Study on Adverse Events Associated With a Patency Capsule: Additional Survey for the Japanese Association for Capsule Endoscopy-Oriented Appropriate Use Survey for Patency Capsule (J-Pop) Study

Teppei Omori, Kenji Watanabe, Naoki Ohmiya, Fumihito Hirai, Masanao Nakamura, Takashi Kagaya, Shiro Oka, Keiji Ozeki, Seiji Kawano, Kazeo Ninomiya, Konosuke Nakaji, Masaki Iimuro, Osamu Handa, Daisuke Tokuhara, Tamotsu Sagawa, Takahiro Wakamatsu, Shingo Kato, Akihiro Araki, Yuji Koike, Shinichi Hashimoto, Tomohiko Mannami, Shingo Higaki, Mari Hayashida, Yukinori Sameshima, Daisuke Hasegawa, Katsutoshi Tokushige, Toshiyuki Matsui

GASTROINTESTINAL ENDOSCOPY Vol. 85 ( 5 ) page： AB294 - AB294 2017.5

今月の主題消化管結核の診断と治療─最近の進歩主題症例抗結核薬による診断的治療が奏効した小腸多発潰瘍の1例

齋藤雅之, 中村正直, 渡辺修, 山村健史, 松下正伸, 中野有泰, 大島啓嗣, 佐藤淳一, 松浦倫三郎, 舩坂好平, 大野栄三郎, 川嶋啓揮, 宮原良二, 廣岡芳樹, 後藤秀実

胃と腸 Vol. 52 ( 2 ) page： 233 - 238 2017.2

Risk factors

Uchida G., Nakamura M., Watanabe O., Yamamura T., Matsushita M., Ishikawa T., Furukawa K., Funasaka K., Ohno K., Kawashima H., Miyahara R., Goto H., Hirooka Y.

Journal of Japanese Society of Gastroenterology Vol. 114 ( 10 ) page： 1819 - 1828 2017

Publisher：Journal of Japanese Society of Gastroenterology

Capsule endoscopy (CE) and double-balloon endoscopy (DBE) have revolutionized the diagnosis and treatment of obscure gastrointestinal bleeding (OGIB). Although CE and DBE provide access to the small bowel and OGIB can be effectively treated by the identification of specific bleeding lesions, some patients experience rebleeding after small bowel investigation. There are no definite algorithms to determine the best follow-up period for patients with OGIB. The purpose of this study was to investigate the long-term outcomes and risk factors for rebleeding and to develop a follow-up strategy for patients with overt OGIB. Among 386 patients who underwent CE for OGIB at Nagoya University Hospital between June 2004 and December 2015, 318 patients with overt OGIB were enrolled in this retrospective study. The clinical characteristics and risk factors for rebleeding were analyzed, and a predictive model for the same was developed. Rebleeding occurred in 45 patients (14.2%) during a median follow-up period of 16.8 months. Multivariable regression analysis identified the following factors as significant independent predictors of rebleeding : vascular lesions seen during CE, transfusion requirement, and patients aged ≥60 years. The predictive model for rebleeding was developed using these factors to identify patients who had a high risk of rebleeding and to provide useful information to physicians in clinical practice. The C-statistic of the predictive model was 0.698. A risk-based approach to follow-up patients with OGIB can help clinicians determine a follow-up period for patients after small bowel investigation.

Scopus

Endoscopic ultrasound-guided drainage using a forward-viewing echoendoscope for peripancreatic fluid collection after Child resection. International journal

Takuya Ishikawa, Kentaro Yamao, Yasuyuki Mizutani, Tadashi Iida, Kota Uetsuki, Masanao Nakamura, Hiroki Kawashima

Endoscopy Vol. 56 ( S 01 ) page： E83 - E84 2024.12

Endoscopic Papillectomy for Ampullary Gangliocytic Paraganglioma: A Case Series and Literature Review

Takada Yoshihisa, Ishikawa Takuya, Yamao Kentaro, Mizutani Yasuyuki, Iida Tadashi, Uetsuki Kota, Nakamura Masanao, Furukawa Kazuhiro, Yamamura Takeshi, Kawashima Hiroki

Internal Medicine Vol. advpub ( 0 ) 2024.9

Language：English Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Internal Medicine

Background Gangliocytic paraganglioma (GP) significantly affects patients' quality of life. However, studies on endoscopic papillectomy (EP) for ampullary GP are limited. We therefore evaluated the safety and efficacy of EP for treating ampullary GP. Methods We retrospectively reviewed the clinicopathological characteristics of patients with GP who underwent EP at Nagoya University Hospital and conducted a literature survey. Results We enrolled six patients with a median tumor diameter of 17 mm. Complications related to EP were observed in three patients: two experienced bleeding, one had mild acute pancreatitis, and one had perforation (duplicate patients included), all of whom improved conservatively. Five resected specimens were confined to the submucosal layer, and one was beyond the submucosal layer. All patients were monitored without surgery, and no disease recurrence was observed after a median follow-up of 73 months. A literature review identified 14 patients, and additional surgery due to a positive vertical margin after EP revealed lymph node metastasis in 2 patients. There was no disease recurrence or death. Conclusion EP led to good long-term outcomes and effectively treated ampullary GP. Considering the potential for lymph node metastasis, additional surgery is recommended if the tumor exceeds the submucosal layer.

DOI： 10.2169/internalmedicine.4102-24

PubMed

CiNii Research

A prospective study on the histological evaluation of type 1 autoimmune pancreatitis using endoscopic ultrasound-guided fine needle biopsy with a 19-gauge Franseen needle.

Takuya Ishikawa, Kentaro Yamao, Yasuyuki Mizutani, Tadashi Iida, Kota Uetsuki, Yoshie Shimoyama, Masanao Nakamura, Kazuhiro Furukawa, Takeshi Yamamura, Hiroki Kawashima

Journal of hepato-biliary-pancreatic sciences Vol. 31 ( 8 ) page： 581 - 590 2024.8

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND/PURPOSE: To assess the diagnostic efficacy and safety of endoscopic ultrasound-guided fine needle biopsy (EUS-FNB) using a 19-gauge Franseen needle for autoimmune pancreatitis (AIP). METHODS: Twenty patients suspected of having type 1 AIP were prospectively enrolled and underwent EUS-FNB with a 19-gauge Franseen needle. Their data were compared with those of historical controls: a total of 29 type 1 AIP patients had EUS-FNB with a 22-gauge Franseen needle. RESULTS: Specimens suitable for histological evaluation were obtained from 19 of the 20 patients (95%), and the median total tissue area was 11.9 mm2. The histological diagnosis rate of AIP was 65% (95% CI: 43.2%-82%). Adverse events were observed in three patients (15%), and a switch to 22-gauge needles occurred during transduodenal puncture in two patients. Compared to those punctured with 22-gauge needles, patients punctured with 19-gauge needles had greater prevalence of each characteristic feature of lymphoplasmacytic sclerosing pancreatitis, but the difference was not statistically significant. CONCLUSIONS: EUS-FNB using a 19-gauge Franseen needle demonstrated favorable performance for the histological diagnosis of AIP and allowed for large tissue samples, potentially facilitating pathological diagnosis. However, during transduodenal puncture, maneuverability is reduced; therefore, the needle may need to be selected according to the puncture site.

DOI： 10.1002/jhbp.1438

Scopus

PubMed

Predictors of the efficacy of vedolizumab in patients with ulcerative colitis.

Go Kajikawa, Tsunaki Sawada, Masanao Nakamura, Takeshi Yamamura, Keiko Maeda, Eri Ishikawa, Kota Uetsuki, Takashi Hirose, Tadashi Iida, Yasuyuki Mizutani, Kentaro Yamao, Takuya Ishikawa, Kazuhiro Furukawa, Hiroki Kawashima

Nagoya journal of medical science Vol. 86 ( 3 ) page： 407 - 421 2024.8

Language：English Publishing type：Research paper (scientific journal)

Vedolizumab is a treatment option for ulcerative colitis but data on predictors of treatment response remain insufficient to establish personalized treatment strategies. We aimed to investigate the real-world effectiveness of vedolizumab in adult patients with ulcerative colitis and explore factors involved in predicting treatment response. This single-center, single-arm, prospective observational study included 26 patients with clinically active ulcerative colitis patients' characteristics at baseline, epidemiological information, existing treatment, clinical activity index score, endoscopic score, and blood test data were collected. Serum levels of tumor necrosis factors alpha, interferon gamma, interleukin-4, interleukin-6, interleukin-10, interleukin-17, soluble mucosal addressin cell adhesion molecule 1, and soluble vascular cell adhesion molecule 1 were measured. Patient characteristics in the remission and non-remission groups were compared based on these parameters. Clinical remission at 6 weeks of treatment occurred in 9 (35%) of the 26 patients. At 14 weeks, clinical remission was observed in 11 patients (42%). There were no significant differences pertaining to age, sex, duration of disease, extent of disease, steroid resistance, or prior treatment with biological agents among the two groups after 14 weeks of treatment. Hemoglobin ≥ 11.5 g/dL (odds ratio, 15.0; 95% confidence interval, 1.50-149; P=0.014) and soluble mucosal addressin cell adhesion molecule 1 ≥ 765 pg/mL (odds ratio, 17.3; 95% confidence interval, 2.36-127; P=0.004) were significant factors. In conclusion, hemoglobin and serum soluble mucosal addressin cell adhesion molecule 1 levels are factors correlated with the therapeutic efficacy of vedolizumab.

DOI： 10.18999/nagjms.86.3.407

PubMed

What is the appropriate method of pathological specimen collection for cholangiocarcinoma detection in primary sclerosing cholangitis?

Yuichi Kano, Takuya Ishikawa, Kentaro Yamao, Yasuyuki Mizutani, Tadashi Iida, Kota Uetsuki, Takeshi Yamamura, Kazuhiro Furukawa, Masanao Nakamura, Hiroki Kawashima

Journal of gastroenterology Vol. 59 ( 7 ) page： 621 - 628 2024.7

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND: In primary sclerosing cholangitis (PSC), it is important to understand the cholangiographic findings suggestive of malignancy, but it is difficult to determine whether cholangiocarcinoma is present due to modifications caused by inflammation. This study aimed to clarify the appropriate method of pathological specimen collection during endoscopic retrograde cholangiopancreatography for surveillance of PSC. METHODS: A retrospective observational study was performed on 59 patients with PSC. The endpoints were diagnostic performance for benign or malignant on bile cytology and transpapillary bile duct biopsy, cholangiographic findings of biopsied bile ducts, diameters of the strictures and upstream bile ducts, and their differences. RESULTS: The sensitivity (77.8% vs. 14.3%, P = 0.04), specificity (97.8% vs. 83.0%, P = 0.04), and accuracy (94.5% vs. 74.1%, P = 0.007) were all significantly greater for bile duct biopsy than for bile cytology. All patients with cholangiocarcinoma with bile duct stricture presented with dominant stricture (DS). The diameter of the upstream bile ducts (7.1 (4.2-7.2) mm vs. 2.1 (1.2-4.1) mm, P < 0.001) and the diameter differences (6.6 (3.1-7) mm vs. 1.5 (0.2-3.6) mm, P < 0.001) were significantly greater in the cholangiocarcinoma group than in the noncholangiocarcinoma group with DS. For diameter differences, the optimal cutoff value for the diagnosis of benign or malignant was 5.1 mm (area under the curve = 0.972). CONCLUSION: Transpapillary bile duct biopsy should be performed via localized DS with upstream dilation for the detection of cholangiocarcinoma in patients with PSC. Especially when the diameter differences are greater than 5 mm, the development of cholangiocarcinoma should be strongly suspected.

DOI： 10.1007/s00535-024-02105-y

Scopus

PubMed

Characteristics of microbiomes of the saliva, duodenal bulb, and descending portion of superficial nonampullary duodenal epithelial tumors. International journal

Hiroyuki Shibata, Kenta Yamamoto, Takashi Hirose, Satoshi Furune, Naomi Kakushima, Kazuhiro Furukawa, Masanao Nakamura, Takashi Honda, Mitsuhiro Fujishiro, Hiroki Kawashima

Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver Vol. 56 ( 6 ) page： 941 - 950 2024.6

Language：English Publishing type：Research paper (scientific journal)

INTRODUCTION: Nonampullary duodenal epithelial tumors are rare, but their prevalence is increasing. Various gastrointestinal cancers have been associated with microbiomes. We evaluated the characteristics of the salivary and duodenal microbiomes of patients with nonampullary duodenal epithelial tumors. METHODS: Saliva and biopsy samples from the duodenal bulb and descending portion were obtained from 15 patients with nonampullary duodenal epithelial tumors and 10 controls. Next-generation sequencing was performed to identify bacteria for comparison. RESULTS: Saliva samples had higher Amplicon Sequence Variants (ASVs) and more observed species than duodenal samples. Saliva samples from patients with nonampullary duodenal epithelial tumor were dominated by Bacteroidetes and Prevotella, whereas Proteobacteria and Neisseria were dominant in the control samples. The relative abundance of bacteria was higher in patients with nonampullary duodenal epithelial tumors. Most bacteria were classified as bacteria of oral origin. Oribacterium and Stomatobaculum were significantly higher in the saliva, duodenal bulb, and descending portion of patients with nonampullary duodenal epithelial tumors. CONCLUSION: Patients with nonampullary duodenal epithelial tumors had different salivary and duodenal microbiomes than controls. Bacteria types differed between groups at each site, and most bacteria of oral origin were more abundant in patients with nonampullary duodenal epithelial tumors.

DOI： 10.1016/j.dld.2024.01.212

Scopus

PubMed

Risk factors for decreased bone mineral density in patients with metabolic dysfunction-associated steatotic liver disease: A cross-sectional study at a health examination center. International journal

Shinya Yokoyama, Takashi Honda, Yoji Ishizu, Norihiro Imai, Takanori Ito, Kenta Yamamoto, Kazuyuki Mizuno, Tetsuhito Kojima, Naoyoshi Kariya, Masanao Nakamura, Hiroki Kawashima

Clinical nutrition (Edinburgh, Scotland) Vol. 43 ( 6 ) page： 1425 - 1432 2024.6

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND & AIMS: Steatotic liver disease (SLD) is often detected in health examinations. However, although individuals with metabolic dysfunction-associated SLD (MASLD) may have decreased bone mineral density (BMD), the specific risk factors remain unclarified. The objective of this study was to identify the factors associated with decreased BMD in patients with MASLD. METHODS: Individuals who underwent abdominal ultrasonography and BMD measurements at our healthcare center were included. The BMD of the calcaneus was assessed using an AOS-10SA bone densitometer. Decreased BMD was defined as a T-score below -1.0 SD or the administration of osteoporosis treatment. SLD was diagnosed based on specific ultrasonographic criteria. RESULTS: A total of 1410 patients were diagnosed with MASLD. The median age was 52 years. Multivariate analysis using a logistic regression model revealed that the independent predictors of decreased BMD were a low body mass index (BMI) or a small waist circumference (odds ratio (OR): 0.48, 95% confidence interval (CI): 0.34-0.67), hypertriglyceridemia (OR: 1.29, 95% CI: 1.00-1.65), and a weak grip strength (OR: 0.98, 95% CI: 0.97-1.00). Subgroup analyses of individuals aged 50 years or older, men, and individuals with a FIB-4 index of 1.3 or greater revealed that the absence of a high BMI or a large waist circumference was associated with decreased BMD. The subgroup analysis of men revealed that a weaker grip strength was associated with decreased BMD. CONCLUSION: The present study suggested several potential risk factors for decreased BMD in patients with MASLD. Individuals with the abovementioned risk factors should be encouraged to undergo BMD measurement from the perspective of preventive medicine.

DOI： 10.1016/j.clnu.2024.04.034

Scopus

PubMed

大腸ポリープに対するコールドスネアポリペクトミーで腹腔内出血をきたした1例

池上脩二, 山村健史, 中村正直, 前田啓子, 澤田つな騎, 石川恵里, 山下彩子, 河村達哉, 横井太紀雄, 川嶋啓揮

Gastroenterological Endoscopy Vol. 66 ( 5 ) page： 1236 - 1241 2024.5

Language：Japanese Publisher：(一社)日本消化器内視鏡学会

症例は51歳男性.CT colonographyで指摘された大腸ポリープの切除目的に施行された大腸内視鏡検査において,脾彎曲部に腺腫性ポリープを認め,Cold Snare Polypectomy(CSP)が施行された.治療2時間後に急激な心窩部痛が出現し,腹部造影CTでは脾彎曲部の結腸壁が腫瘤状に肥厚し,壁内の血管から造影剤の漏出ならびに腹腔内に血性腹水を認めた.CSP手技に伴う腹腔内出血と診断し,同日,横行結腸部分切除術ならびに人工肛門造設術が施行された.手術標本ではCSP施行部位の直下において,筋層内に著明な血腫を認めたが,穿孔所見はなく,CSPの偶発症としての腹腔内出血と診断した.(著者抄録)

Intestinal Microbiome Associated with Efficacy of Atezolizumab and Bevacizumab Therapy for Hepatocellular Carcinoma. International journal

Yosuke Inukai, Kenta Yamamoto, Takashi Honda, Shinya Yokoyama, Takanori Ito, Norihiro Imai, Yoji Ishizu, Masanao Nakamura, Masatoshi Ishigami, Hiroki Kawashima

Cancers Vol. 16 ( 9 ) 2024.4

Language：English Publishing type：Research paper (scientific journal)

The combination of atezolizumab and bevacizumab has become the first-line treatment for patients with unresectable hepatocellular carcinoma (HCC). However, no studies have reported on specific intestinal microbiota associated with the efficacy of atezolizumab and bevacizumab. In this study, we analyzed fecal samples collected before treatment to investigate the relationship between the intestinal microbiome and the efficacy of atezolizumab and bevacizumab. A total of 37 patients with advanced HCC who were treated with atezolizumab and bevacizumab were enrolled. Fecal samples were collected from the patients, and they were divided into responder (n = 28) and non-responder (n = 9) groups. We compared the intestinal microbiota of the two groups and analyzed the intestinal bacteria associated with prognosis using QIIME2. The alpha and beta diversities were not significantly different between both groups, and the proportion of microbiota was similar. The relative abundance of Bacteroides stercoris and Parabacteroides merdae was higher in the responder group than in the non-responder group. When the prognosis was analyzed by the presence or absence of those bacteria, patients without both had a significantly poorer prognosis. Differences in intestinal microbiome are involved in the therapeutic effect of atezolizumab and bevacizumab.

DOI： 10.3390/cancers16091675

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PubMed

【十二指腸・小腸疾患アトラス】その他血管性病変小腸多発血管腫

河村達哉, 山村健史, 中村正直, 前田啓子, 澤田つな騎, 石川恵里, 横井太紀雄, 川嶋啓揮

消化器内視鏡 Vol. 36 ( 4 ) page： 652 - 653 2024.4

【十二指腸・小腸疾患アトラス】腫瘍,腫瘍様病変リンパ増殖性病変 MALT lymphoma

中村正直, 山村健史, 前田啓子, 澤田つな騎, 石川恵里, 村手健太郎, 古川和宏, 廣瀬崇, 川嶋啓揮

消化器内視鏡 Vol. 36 ( 4 ) page： 480 - 481 2024.4

【十二指腸・小腸疾患アトラス】炎症性疾患自己免疫疾患・膠原病・血管炎など腸リンパ管拡張症

山下彩子, 中村正直, 山村健史, 前田啓子, 澤田つな騎, 石川恵里, 村手健太郎, 加留部謙之輔, 川嶋啓揮

消化器内視鏡 Vol. 36 ( 4 ) page： 622 - 623 2024.4

Artificial intelligence-based diagnostic imaging system with virtual enteroscopy and virtual unfolded views to evaluate small bowel lesions in Crohn's disease. International journal

Kazuhiro Furukawa, Masahiro Oda, Osamu Watanabe, Masanao Nakamura, Takeshi Yamamura, Keiko Maeda, Kensaku Mori, Hiroki Kawashima

Revista espanola de enfermedades digestivas 2024.3

Language：English Publishing type：Research paper (scientific journal)

Since even subtle mucosal changes may be depicted using virtual endoscopy created by the three-dimensional reconstruction of MDCT images, we developed a novel diagnostic imaging system that integrates and displays virtual enteroscopy, curved planar reconstruction, and a virtual unfolded view, the width of which changes with increases/decreases in the inner luminal diameter. The system is also equipped with artificial intelligence that superimposes and displays depressed areas, generates an automatic small bowel centerline that connects fragmented small bowel regions, and performs electronic cleansing. We retrospectively evaluated the diagnostic performance of this system for small bowel lesions in Crohn's disease, which were divided into two groups: endoscopically-observable and endoscopically-unobservable. Lesion detection rates for stenoses, longitudinal ulcers with a cobblestone appearance, and scars were excellent in both groups. This system, when used in combination with endoscopy, shows slight mucosal changes in areas in which an endoscope cannot reach due to strictures, thereby extending the range of observation of the small bowel. This system is a useful diagnostic modality that has the capacity to assess mucosal healing and provide extraluminal information.

DOI： 10.17235/reed.2024.10405/2024

PubMed

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Papers - NAKAMURA, Masanao