1. Department of Basic Medcine, Nursing and Health College Zhengzhou University Henan PR. China
2. Department of Obstetrics and Gynecology Ankang Maternal and Child Care Service Centre Ankang Shannxi PR. China
3. Department of Human Anatomy, School of Basic Medical Science Zhengzhou University Henan PR. China
4. Department of General Surgery The Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine Tianjin PR. China
5. Department of Basic Nursing, Nursing and Health College Zhengzhou University Henan PR. China
6. Clinical 1 Department, Nursing and Health College Zhengzhou University Henan PR. China
7. Nursing and Health College Zhengzhou University Henan PR. China
8. Department of Pathology Ankang City Central Hospital Ankang Shannxi PR. China