Williamson Jonathan P, Illing Rowland, Gertler Paul, Braude Stan
Respiratory and Critical Care Medicine, Manly District Hospital, Darcy Road, Manly, Sydney, NSW 2095, Australia.
Med J Aust. 2004 Nov 1;181(9):500-1. doi: 10.5694/j.1326-5377.2004.tb06409.x.