1. Department of Nursing, Haikou People’s Hospital & Central South University, Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, PR China;
2. Department of Hematology, Haikou People’s Hospital, Central South University, Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, PR China;
3. Department of Nursing, Qionghai People’s Hospital, Qionghai, PR China;
4. Department of Neurology, Haikou People’s Hospital & Central South University, Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, PR China