1. From the Division of Epidemiology and Biostatistics; School of Public Health, The University of Queensland; Brisbane Australia
2. Research School of Population Health; The Australian National University; Canberra Australia
3. Department of Cardiology; Princess Alexandra Hospital; Brisbane Australia
4. University of Queensland Medical School; Brisbane Australia
5. Cochrane Acute Respiratory Infections Group, Faculty of Health Sciences and Medicine, Bond University; Gold Coast Australia