1. Luke Wolfenden and Sam McCrabb are with the School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia. Ani Movsisyan and Jan M. Stratil are with the Institute for Medical Information Processing, Biometry and Epidemiology and the Pettenkofer School of Public Health, Ludwig Maximilian University of Munich, Munich, Germany. Sze Lin Yoong is with the Faculty of Health, Arts and Design, Swinburne University of Technology, Melbourne, Australia.