Author

Yasumasa Sumitomo

Institutions: Hoshigaoka Medical Center, Japan Community Healthcare Organization

Observed institutions: Hoshigaoka Medical Center, Japan Community Healthcare Organization

ORCID: 0009-0004-9193-6265

Observed ORCID: 0009-0004-9193-6265

OpenAlex ID: A5036190940

Occurrence of a Duodenal Polypoid Lesion During Long-Term Acid Suppression Therapy and Its Regression After Drug Discontinuation

2021 · Masako Shintaku, Masayuki Shintaku, et al. · Case Reports in Gastroenterology · 2

Depth of noninjecting resection using bipolar soft coagulation mode for 6 to 9 mm colorectal polyps: a retrospective study in Japan

2025 · Yoshifumi Watanabe, Mitsuo Tokuhara, et al. · Clinical Endoscopy · 1

Gastric sarcoidosis presenting as multiple, discolored mucosal lesions after Helicobacter pylori eradication

2026 · Masako Shintaku, Yoshifumi Watanabe, et al. · Clinical Journal of Gastroenterology

Metastatic Exophytic Gastric Adenocarcinoma Diagnosed Using Endoscopic Ultrasound-Guided Fine-Needle Biopsy: A Case Report

2026 · Yoshifumi Watanabe, Yasumasa Sumitomo · Cureus

Works count: 4

Citation count: 3

H-index: 1

I10-index: