1 Centre for Online Health, Ground Floor Building 33, Princess Alexandra Hospital, Woolloongabba, Qld 4102, Australia; and Centre for Health Services Research, The University of Queensland, Brisbane, Qld, Australia.
2 Centre for Online Health, Ground Floor Building 33, Princess Alexandra Hospital, Woolloongabba, Qld 4102, Australia; and Centre for Health Services Research, The University of Queensland, Brisbane, Qld, Australia; and Centre for Innovative Medical Technology, University of Southern Denmark, Odense, Denmark.