Chow, Roberta T.a,*; Heller, Gillian Z.c; Barnsley, Lesb
aCastle Hill Medical Centre, 269-271 Old Northern Road, Castle Hill, NSW 2154, Australia
bDepartment of Statistics, Macquarie University, NSW 2109, Australia
cFaculty of Medicine, University of Sydney, Department of Rheumatology, Repatriation Hospital, Concord, NSW 2139, Australia
*Corresponding author. Tel.: +61 2 9634 5000; fax: +61 2 9875 2077.
E-mail address:[email protected]
Received June 16, 2005; received in revised form March 23, 2006; accepted May 17, 2006.
