November 2019

December 2019

February 2020

March 2020

2nd World Congress on Otolaryngology - Head and Neck Surgery,Edinburgh, United Kingdom

12th World Heart Summit 2020,Singapore, Singapore

30th 11th International Congress on Surgery,Kyoto, Japan

April 2020

May 2020

4th 3rd Annual Summit on Surgery,Stockholm, Sweden

June 2020

July 2020

September 2020