Wu Yue, Xu Zhe-Rong, Zhou Wen-Jing, Yang Yun-Mei
Department of Geriatrics, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310013, China.
Chin Med J (Engl). 2015 Mar 5;128(5):706-7. doi: 10.4103/0366-6999.151702.