Wagga Wagga Rural Referral Hospital, Wagga Wagga, NSW, Australia. School of Medicine, Sydney, University of Notre Dame, Fremantle, NSW, Australia. School of Medicine, University of New South Wales, Sydney, NSW, Australia. Wagga Wagga Rural Referral Hospital, Wagga Wagga, NSW, Australia. lw844@uowmail.edu.au. School of Medicine, University of Wollongong, Wollongong, NSW, Australia. lw844@uowmail.edu.au.