1. Department of Nursing, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China (mainland)
2. Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China (mainland)
3. Department of ICU, Honghui Hospital, Xi'an Jiaotong University, Xi’an, Shaanxi, China (mainland)
4. Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi’an, Shaanxi, China (mainland)
5. School of Nursing, Fourth Military Medical University, Xi’an, Shaanxi, China (mainland)
6. Department of Nursing, Honghui Hospital, Xi'an Jiaotong University, Xi’an, Shaanxi, China (mainland)