1. a School of Nursing, Binzhou Medical University , Binzhou, Shandong , China
2. b Department of Dermato-Venereal , Binzhou Medical University Hospital , Binzhou, Shandong , China
3. c School of Nursing, Philippine Women’s University , Manila , Philippines
4. d College of Nursing and Midwifery, Bataan Peninsula State University , Bataan , Philippines