according to the query of Aiqi, Free Yiqing was registered by west china hospital on November 28th, 222, and the handling agency was Sichuan Zhongsuo Intellectual Property Service Co., Ltd.

West China Medical Center of Sichuan University, located in Chengdu, Sichuan Province, is a secondary college under Sichuan University. Sichuan University, located in Chengdu, Sichuan Province, is a national key university directly under the Ministry of Education of the People's Republic of China and directly under the central government.