1. Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.
2. Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.
3. Department of Nursing Research Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
4. School of Nursing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.