1. Nursing Department; Gansu Provincial Hospital; Lanzhou Gansu China
2. School of Nursing; Lanzhou University; Lanzhou Gansu China
3. Medical College; Northwest University for Nationalities; Lanzhou Gansu China
4. Department of Endocrinology; Gansu Provincial Hospital; Lanzhou Gansu China
5. Evidence-Based Medicine Center; School of Basic Medical Sciences; Lanzhou University; Lanzhou Gansu China
6. Department of Cardiology; Gansu Provincial Hospital; Lanzhou Gansu China
7. School of Public Health; Lanzhou University; Lanzhou Gansu China
8. School of Nursing; Gansu University of Chinese Medicine; Lanzhou Gansu China
9. Nursing Department; Affiliated Hospital of Medical College of Chinese People's Armed Police Force; Tianjin China