1. School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
2. School of Nursing, Purdue University, West Lafayette, IN, USA
3. Department of Nursing, Yantai Yuhuangding Hospital, Yantai, Shandong, China
4. Department of Nursing, Weifang People’s Hospital, Weifang, Shandong, China
5. Department of Nursing, Second Hospital of Shandong University, Jinan, Shandong, China
6. Department of Nursing, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China