1. Department of Obstetrics and Gynecology, Ospedale Regionale di Lugano, Lugano, Switzerland
2. Health and Social Care Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
3. Discipline of Exercise and Sport Science, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
4. Charles Perkins Centre, The University of Sydney, Sydney, New South Wales, Australia