1. School of Public Health, Tropical Medicine and Rehabilitation Sciences, Amphibian Disease Ecology Group, James Cook University, Townsville, QLD 4811, Australia.
2. Discipline of Physiology, Bosch Institute, Faculty of Medicine, University of Sydney, Sydney, NSW 2006, Australia.
3. School of Medicine, Division of Cardiology, University of New Mexico, Albuquerque, NM 87131, USA.
4. School of Marine and Tropical Biology, Amphibian Disease Ecology Group, James Cook University, Townsville, QLD 4811, Australia.