著書等（英文）
Oba K, Kuchiba A. Sample Size Calculations for Phase III Trials in Oncology. In: Halabi S, Michiels S (Eds.) Textbook of Clinical Trials in Oncology: A Statistical Perspective. CRC Press, FL, 2019
Oba K, Kuchiba A. Sample Size Calculations for Phase III Trials in Oncology. In: Halabi S, Michiels S (Eds.) Textbook of Clinical Trials in Oncology: A Statistical Perspective. CRC Press, FL, 2019