Oba K, Morita S, Rahman M, Sakamoto J. Factors associated with compliance and non-compliance by physicians in a large-scale randomized clinical trial. Trials 2006; 7:26.
Oba K, Morita S, Tsuburaya A, Kodera Y, Kobayashi M, Sakamoto J. Efficacy of Adjuvant Chemotherapy Using Oral Fluorinated Pyrimidines for Curatively Resected Gastric Cancer: A Meta-Analysis of Centrally Randomized Controlled Clinical Trials in Japan. J Chemother 2006; 18: 311-7.
Sakamoto J, Morita S, Oba K, Matsui T, Kobayashi M, Nakazato H, Ohashi Y; Meta-Analysis Group of the Japanese Society for Cancer of the Colon Rectum. Efficacy of adjuvant immunochemotherapy with polysaccharide K for patients with curatively resected colorectal cancer: a meta-analysis of centrally randomized controlled clinical trials. Cancer Immunol Immunother 2006; 55: 404-11.
Sakamoto J, Oba K, Matsui T, Kobayashi M. Efficacy of Oral Anti-Cancer Agents for Colorectal Cancer. Dis Colon Rectum 2006; 49 Suppl 1: S82-91.
Morita S, Kobayashi M, Oba K, Ichihara T, Nakao A, Sakamoto J. Truth-telling to Patients with Advanced Cancer: A Comparison between Cancer center, University Hospitals, General City Hospitals, and Private General Practitioners in Japan. Ann Cancer Res Therap 2006; 14: 1-11.
Doi K, Matsuyama Y, and Ohashi Y. Analysis of quality of life data with death and drop-out in advanced non-small-cell lung cancer patients. Japanese Journal of Biometrics 2006; 27(1): 17-33.
Sakamoto K, Matsuyama Y, and Ohashi Y. Sensitivity analysis of publication bias in meta-analysis: A Bayesian approach. Japanese Journal of Biometrics 2006; 27(2): 109-119.
Chiba Y, Matsuyama Y, Sato T, and Yoshimura I. A simulation study for a linear measurement error model when error variances vary between measurements. Journal of Agricultural, Biological, and Environmental Statistics. 2005; 10: 118-130.
Hasegawa K, Kokudo N, Imamura H, Matsuyama Y, Aoki T, Minagawa M, Sano K, Sugawara Y, Takayama T, and Makuuchi M. Prognostic impact of anatomical resection for hepatocellular carcinoma. Annals of Surgery 2005; 242(2): 252-259.
Matsuyama Y. Analysis of longitudinal studies with death and drop-out. DIA 11th Annual Workshop in Japan for Biostatistics 26-27, August, 2004, Tokyo, Japan
Matsuyama Y, Yamaguchi T, Hashimoto S, Kawado M, Ichikawa S, Umeda T, and Kihara M. Epidemiological characteristics of HIV and AIDS in Japan based on HIV/AIDS surveillance data: An international comparison. The Journal of AIDS Research. 2004; 6: 184-193.