1. Henan Provincial People's Hospital Zhengzhou China
2. Zhengzhou University People's Hospital Zhengzhou China
3. Henan University People's Hospital Zhengzhou China
4. Zhengzhou Railway Vocational and Technical College Zhengzhou China
5. Xiangya Nursing School Central South University Changsha China
6. Center for Innovative Care in Aging Johns Hopkins University School of Nursing Baltimore MD USA