1. School of Nursing, Sun Yat-sen University, Guangzhou, Guangdong, China
2. Department of Catheter Clinic, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
3. Nasopharyngeal Department, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
4. Nursing Department, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China