Koji Nakaya, Masahisa Onoguchi, Hiroe Muto, Yasuyuki Takahashi, Hiroyuki Tsushima, Akihiro Kikuchi, Takayuki Shibutani, Kanae Matsuura, Eisuke Yasuda. Changing methods of education during a pandemic: questionnaire survey about examinations for nuclear medicine technology at educational institutions in Japan. Journal of nuclear medicine technology. 2021. 50. 1. 60-65
Takayuki Shibutani, Koichi Okuda, Hajime Ichikawa, Toyohiro Kato, Kenta Miwa, Hiroyuki Tsushima, Masahisa Onoguchi, Akio Nagaki. Imaging technology for myocardial perfusion single-photon emission computed tomography 2018 in Japan. Japanese journal of radiology. 2020. 38. 3. 274-282
Hajime Ichikawa, Kenta Miwa, Koichi Okuda, Takayuki Shibutani, Toyohiro Kato, Akio Nagaki, Hiroyuki Tsushima, Masahisa Onoguchi. Current state of bone scintigraphy protocols and practice in Japan. Asia Oceania journal of nuclear medicine & biology. 2020. 8. 2. 116-122