Heller Richard F, Weller David P, Jamrozik Konrad
Evidence for Population Health Unit, School of Epidemiology and Health Sciences, University of Manchester, Stopford Building, Oxford Road, Manchester, M13 9PT, UK.
Med J Aust. 2004 Aug 2;181(3):128. doi: 10.5694/j.1326-5377.2004.tb06201.x.