1. Center for General Practice at Aalborg University; Fyrkildevej 7 Aalborg Denmark 9220
2. Bond University; Centre for Research in Evidence-Based Practice (CREBP); 14 University Drive Gold Coast Queensland Australia 4229
3. Gold Coast Hospital and Health Service; GCUH Library; Level 1, Block E, GCUH Southport Queensland Australia 4215
4. Oxford University; Nuffield Department of Primary Care Health Sciences; Oxford Oxon UK OX26GG