1. Department of Nursing, The Affiliated Hospital of Qingdao University, Qingdao, China
2. School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
3. School of Nursing, Qingdao University, Qingdao, China
4. Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
5. Department of Nursing and Hospital Infection Management, The Affiliated Hospital of Qingdao University, Qingdao, China
6. Department of Nursing, Laixi Municipal Hospital, Qingdao, China
7. Office of the Dean, The Affiliated Hospital of Qingdao University, Qingdao, China