L Y Hsu1. 1. Department of Medicine, National University Health System, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228. li_yang_hsu@nuhs.edu.sg.
Authors: Tom Jefferson; Chris B Del Mar; Liz Dooley; Eliana Ferroni; Lubna A Al-Ansary; Ghada A Bawazeer; Mieke L van Driel; Sreekumaran Nair; Mark A Jones; Sarah Thorning; John M Conly Journal: Cochrane Database Syst Rev Date: 2011-07-06