1. Department of Nursing, Wangjing Hospital, ChineseAcademy of Traditional ChineseMedicine, No.6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing,100102,China
2. Department of Orthopaedics and Traumatology, Wangjing Hospital, Chinese Academy of Traditional Chinese Medicine, No.6 Wangjing Central Ring Road South, Chaoyang District, Beijing 100102, China