1. Shantou University Medical College Shantou P. R. China
2. Department of Nursing Third People's Hospital of Chengdu Chengdu P. R. China
3. School of Nursing Shantou University Medical College Shantou P. R. China
4. Health Commission of Guangdong Province Guangzhou P. R. China
5. Guangdong Nurses Association Guangzhou P. R. China
6. Jinan University Guangzhou P. R. China