1 MyFetUZ Fetal Research Center, Department of Development and Regeneration, Biomedical Sciences, KU Leuven, Leuven, Belgium.
2 Department of Obstetrics and Gynecology, Division of Woman and Child, Fetal Medicine Unit, University Hospitals Leuven, Leuven, Belgium.
3 Michael E. DeBakey Department of Surgery, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA.
4 Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA.