1. School of Mathematics and Statistics (M019); University of Western Australia; 35 Stirling Highway Crawley WA 6009 Australia
2. School of Population and Global Health (M431); University of Western Australia; 35 Stirling Highway Crawley WA 6009 Australia
3. Centre for Applied Statistics (M019); University of Western Australia; 35 Stirling Highway Crawley WA 6009 Australia