1. Bond University; Centre for Research in Evidence Based Practice; Gold Coast Queensland Australia 4229
2. The University of Sydney; Room 322 Edward Ford Building (A27) Sydney NSW Australia 2006
3. National Library of Medicine, National Institutes of Health; National Center for Biotechnology Information; 8600 Rockville Pike Bethesda Maryland USA 20894
4. Bond University; Faculty of Health Sciences and Medicine; Gold Coast Queensland Australia 4229
5. Cardiff University; Cochrane Institute of Primary Care and Public Health, School of Medicine; 2nd Floor, Neuadd Meirionnydd Heath Park Cardiff Wales UK CF14 4YS