Trend and Risk Factors of Diverticulosis in Japan: Age, Gender, and Lifestyle/Metabolic-Related Factors May Cooperatively Affect on the Colorectal Diverticula FormationNobutake Yamamichi, Kazuhiko Koike, Keiko Niimi et al.|PLoS ONE|2015Cited by 108
Background Factors of Reflux Esophagitis and Non-Erosive Reflux Disease: A Cross-Sectional Study of 10,837 Subjects in JapanChihiro Minatsuki, Kazuhiko Koike, Nobutake Yamamichi et al.|PLoS ONE|2013Cited by 88
Associated Factors of Atrophic Gastritis Diagnosed by Double-Contrast Upper Gastrointestinal Barium X-Ray Radiography: A Cross-Sectional Study Analyzing 6,901 Healthy Subjects in JapanNobutake Yamamichi, Kazuhiko Koike, Chigaya Hirano et al.|PLoS ONE|2014Cited by 24
Gastroesophageal Reflux Disease-Related Disorders of Systemic Sclerosis Based on the Analysis of 66 PatientsRie Matsuda, Kazuhiko Koike, Nobutake Yamamichi et al.|Digestion|2018Cited by 18
Categorization of Upper Gastrointestinal Symptoms Is Useful in Predicting Background Factors and Studying Effects and Usages of Digestive DrugsNobutake Yamamichi, Kazuhiko Koike, Takeshi Shimamoto et al.|PLoS ONE|2014Cited by 5