Comment on Ooi and Wong. Twin Pregnancy With Gestational Diabetes Mellitus: A Double Whammy? Diabetes Care 2018;41:e15-e16

¹Department of Diabetes, Endocrinology and Metabolism, Royal North Shore Hospital, St Leonards, Sydney, New South Wales, Australia

²Northern Clinical School, University of Sydney, St Leonards, Sydney, New South Wales, Australia

³Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Sydney, New South Wales, Australia