1. Department of Cardiology, Xijing Hospital, Air Force Military Medical University, Xi’an, 710032, Shaanxi, China
2. Department of Nursing, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, 710038, Shaanxi, China
3. Human Resources Department, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, 710038, Shaanxi, China
4. Shaanxi Nursing Association, Xi’an, 710032, Shaanxi, China