1. World Health Organisation Global Database on Body Mass Index 2006 http://www.assessmentpsychology.com/icbmi.htm
2. Online NSW Ministry of Health Snapshot of Adult Overweight and Obesity 2014 http://www.health.nsw.gov.au/heal/Pages/snapshot-adult-obesity.aspx
3. Online HealthStats NSW Overweight and Obesity in Adults 2014 http://www.healthstats.nsw.gov.au/Indicator/beh_bmi_age/beh_bmi_age_snap
4. Online Royal Australian and New Zealand College of Obstetricians and Gynaecologist College Statement Obesity in pregnancy, management of (C-Obs 49) https://www.ranzcog.edu.au/college-statements-guidelines.html#obstetrics
5. Maternal overweight and obesity and risk of congenital heart defects in offspring;Brite;Int J Obes (Lond),2014