1. Department of Nursing, The First Hospital of Hebei Medical University, Shijiazhuang, China
2. School of Nursing, China Medical University, Shenyang, China
3. Hebei Province Key Laboratory of Nutrition and Health, Department of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, China
4. School of Nursing, Hebei Medical University, Shijiazhuang, China.