Shi-long Lai1, Da-rong Wu, Ying-rong Lao. 1. Unit of Clinical Epidemiology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510120, China. gzxuntcm@pub.guangzhou.gd.cn
Authors: M K Murphy; N A Black; D L Lamping; C M McKee; C F Sanderson; J Askham; T Marteau Journal: Health Technol Assess Date: 1998 Impact factor: 4.014