Oba K, Kobayashi M, Matsui T, Kodera Y, Sakamoto J. Efficacy of immunochemotherapy with lentinan for patients with unresectable/recurrent gastric cancer: An individual-patient-based meta-analysis of randomized controlled clinical trials. Anticancer Res 2009; 29:2739-45.
Yasuno S, Ueshima K , Oba K, Fujimoto A, Ogihara T, Saruta T, Nakao K. Clinical significance of left ventricular hypertrophy and changes of left ventricular mass in high-risk hypertensive patients: An analysis of CASE-J trial. J Hypertens 2009; 27: 1705-12.
Nagata N, Kondo K, Shibata Y, Kato T, Okuyama Y, Ikenaga M, Tanemura H, Oba K, Sakamoto J, Mishima H. Multicenter Phase II Study of FOLFOX for Metastatic Colorectal Cancer in Japan: SWIFT-1 & 2 study. Hepatogastroenterology 2009 ;56: 1346-53.
Kobayashi M, Tsuburaya A, Nagata N, Miyashita Y, Oba K, Sakamoto J. A feasibility study of sequential paclitaxel and S-1 (PTX/S-1) chemotherapy as postoperative adjuvant chemotherapy for advanced gastric cancer. Gastric Cancer 2006; 9: 114-9.
Ogihara T, Nakao K, Fukui T, Fukiyama K, Ueshima K, Oba K, Sato T, Saruta T. Effects of candesartan compared with amlodipine in hypertensive patients with high cardiovascular risks: CASE-J trial. Hypertension 2008; 51: 393-8.
Cho H, Tsuburaya A, Sakamoto J, Morita S, Oba K, Yoshikawa T, Miyajima N; Adjuvant Exercise for General Elective Surgery (AEGES) Study Group. A randomized phase II trial of preoperative exercise to reduce operative risk in gastric cancer patients with metabolic syndrome: adjuvant exercise for general elective surgery (AEGES) study group. Jpn J Clin Oncol 2008; 38: 71-3.
Morita S, Kaptain AA, Oba K, Sakamoto J. Domain Structure of the EORTC QLQ-STO22 Supported by Japanese Validation Data. Psychooncology 2008; 17: 474-9.
Ogihara T, Nakao K, Fukui T, Fukiyama K, Fujimoto A, Ueshima K, Oba K, Shimamoto K, Matsuoka H, Saruta T, for the CASE-J Trial Group. The optimal target blood pressure for antihypertensive treatment in the Japanese elderly patients with high-risk hypertension: a subanalysis of CASE-J trial. Hypertens Res 2008; 31: 1595-601.
Yoshida S, Matsuyama Y, Ohashi Y, and Ueshima H. A Poisson mixed effects model for investigating the exposure-by-cohort interaction: A Gibbs sampling approach. Japanese Journal of Biometrics 2008; 29: 61-74.