The 22nd IUNS-ICN was scheduled to be held from September 14-19, 2021 in Tokyo, Japan.In view of the worldwide spread of the COVID-19 pandemic, we had been carefully monitoring its impact.Due to its developing situation and difficulties in traveling abroad, after much thought and deliberation, the Organizing Committee of 22nd IUNS-ICN has decided to postpone the congress to December 6-11, 2022.This was a difficult decision to make; however, the health and safety of the participants is our highest priority.Due to the postponement to December 6-11, 2022, the important dates have been changed as follows. Abstract Submission: November 12, 2021 – March 18, 2022 Abstract Acceptance Notice: June 10, 2022 Presenter Registration Deadline: July 15, 2022 Registration Early Bird: June 6, 2022 – August 4, 2022 Regular: August 5, 2022 – October 20, 2022 Late: October 21, 2022 – November 21, 2022 Onsite: December 6, 2022 – December 11, 2022 Our website and Facebook addresses have been changed as follows, and official Twitter page has opened. HP: https://icn22.org/ Facebook: https://www.facebook.com/22ndICNTokyoJapan Twitter: https://twitter.com/icn2021 Please check them, as all updates will be consistently posted therein. 22nd IUNS-ICN 已開始接受論文摘要投稿▼Poster/Oral Abstract Submission November 12, 2021 - March 18, 2022