論文（英文）
Ota K, Oba K, Ito Y, Cheng J, Ota K, Takasu A. Focused Assessment with Sonography for Trauma (FAST) training for first-year resident physicians at a university hospital in Japan: A longitudinal, observational study. SAGE Open Medicine. 2021;9: 20503121211044367.
Ota K, Oba K, Ito Y, Cheng J, Ota K, Takasu A. Focused Assessment with Sonography for Trauma (FAST) training for first-year resident physicians at a university hospital in Japan: A longitudinal, observational study. SAGE Open Medicine. 2021;9: 20503121211044367.