1. Nursing department, Chengdu Fifth People’s Hospital , No. 33 Mashi Road,Wenjiang District, Chengdu 611130, China
2. Operating Room, Operating Room, Sichuan Cancer Hospital , No. 55, Section 4, Renmin South Road, Chengdu 610041, China
3. Department of Development Management, Peking University Third Hospital , No. 49 Huayuan North Road, Beijing 100191, China
4. Operating Room, Beijing Cancer Hospital , No. 52 Fucheng Road, Haidian District, Beijing 100048, China