1 Faculty of Medicine, University of Queensland, Herston, Queensland 4006, Australia. Electronic address: J.Chong2@uq.edu.au.
2 Faculty of Medicine, University of Queensland, Herston, Queensland 4006, Australia; Department of Medical Imaging, The Prince Charles Hospital, Chermside, Queensland 4032, Australia. Electronic address: Joseph.Lee@health.qld.gov.au.