Corresponding Author

Mads L Larsen

Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark

Department of Obstetrics and Gynaecology, Copenhagen University Hospital – Amager-Hvidovre, Hvidovre, Denmark

Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

Correspondence to Mads Langager Larsen at Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark. E-mail: mlangager@dadlnet.dk