1. Evidence‐Based Nursing Center, School of Nursing Lanzhou University Lanzhou China
2. Department of Obstetrics and Gynecology Linxia Hospital of Traditional Chinese Medicine Linxia China
3. Department of Nursing The Third People's Hospital of Lanzhou Lanzhou China
4. Longnan Psychiatric Rehabilitation Hospital Longnan China
5. Department of Nursing Gansu Provincial Hospital Lanzhou China
6. The First School of Clinical Medicine Lanzhou University Lanzhou China