| Affiliation: | (1) Ullevål Hospital, University of Oslo, Kirkeveien 166, 0407 Oslo, Norway;(2) Department of Pediatric Surgery, Ullevål Hospital, University of Oslo, Kirkeveien 166, 0407 Oslo, Norway;(3) Institute of Medical Genetics, Ullevål Hospital, University of Oslo, Kirkeveien 166, 0407 Oslo, Norway;(4) Department of Gastroenterological Surgery, Ullevål Hospital, University of Oslo, Kirkeveien 166, 0407 Oslo, Norway;(5) Department of Environmental Medicine, National Institute of Public Health, Oslo, Norway |
