1. School of Nursing, Jinan University , Guangzhou, Guangdong, 510632 , China
2. Department of Oncology, The First Affiliated Hospital of Jinan University , Guangzhou, Guangdong, 510630 , China
3. Internal Medicine, Nyingchi People's Hospital , Nyingchi, Tibet Autonomous Region, 860000 , China
4. Nursing Department, Nyingchi People's Hospital , Nyingchi, Tibet Autonomous Region, 860000 , China