1. National Perinatal Epidemiology and Statistics Unit (NPESU), Centre for Big Data Research in Health, and School of Clinical Medicine, Faculty of Medicine, University of New South Wales, Sydney, Australia, Unit for Human Reproduction, 1st Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece, and Virtus Health, Sydney Australia (C.V.)
2. National Perinatal Epidemiology and Statistics Unit (NPESU), Centre for Big Data Research in Health, and School of Clinical Medicine, Faculty of Medicine, University of New South Wales, Sydney, Australia (S.K.Y.C., X.Z., G.M.C.)
3. Centre for Big Data Research in Health, Faculty of Medicine, University of New South Wales, Sydney, Australia (L.J.)
4. School of Clinical Medicine, Faculty of Medicine, University of New South Wales, Sydney, Australia (W.L., K.L.)
5. National Drug and Alcohol Research Centre and School of Population Health, Faculty of Medicine, University of New South Wales, Sydney, Australia (A.H.)
6. IVFAustralia, and School of Clinical Medicine, Faculty of Medicine, University of New South Wales, Sydney, Australia (M.C.)
7. The Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia (R.J.N.).