Received: 15 March 2021
Accepted: 16 August 2021
First Online: 23 August 2021
: This Multi-center Clinical Study Group of Osaka, Colorectal Cancer Treatment Group-1107 (ExternalRef removed) study was conducted in accordance with the ethical principles of the Declaration of Helsinki and in compliance with Japanese ethical guidelines for clinical studies. The study protocol was approved by the institutional review board of each participating institution (Osaka General Medical Center, Osaka University, Rinku General Medical Center, Japan Community Healthcare Organization Osaka Hospital, Sakai City Medical Center, Suita Municipal Hospital, Hyogo Prefectural Nishinomiya Hospital, National Hospital Organization Osaka National Hospital, Saiseikai Tondabayashi Hospital, Osaka Rosai Hospital, Itami City Hospital). Written informed consent was obtained from all patients before enrolment.
: Our manuscript does not contain any individual person’s data in any form.
: The authors declare that they have no competing interests.