Tanaka, Yusuke https://orcid.org/0000-0002-3987-1589
Ueda, Yutaka
Kakuda, Mamoru
Yagi, Asami
Okazawa, Akiko
Egawa-Takata, Tomomi
Matsuzaki, Shinya
Kobayashi, Eiji
Yoshino, Kiyoshi
Fukui, Keisuke
Ito, Yuri
Nakayama, Tomio
Kimura, Tadashi
Article History
Received: 17 March 2019
Accepted: 11 April 2019
First Online: 25 April 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: Committee of the institution within which the work was undertaken and that it conforms to the provisions of the Declaration of Helsinki. A written informed consent for participation in the cancer registry database was not obtained from patients, because physicians could transfer data to the cancer registry without the patient’s consent.