1. School of NursingPeking University Beijing China
2. Intensive Care UnitPeking University First Hospital Beijing China
3. Publishing House of Chinese Nursing Management Beijing China
4. Fuwai HospitalChinese Academy of Medical Sciences Beijing China
5. Department of Obstetrics and GynecologyPeking University Third Hospital Beijing China
6. Doctoral School of EducationEötvös Loránd University (ELTE) Budapest Hungary