[1
]
Department of Clinical Science, Intervention and Technology, Karolinska Institutet,
Stockholm, Sweden.
[2
]
INSERM, Obstetrical, Perinatal and Paediatric Epidemiology Research Team, Centre for
Epidemiology and Biostatistics (U1153), Paris-Descartes University, Paris, France.
[3
]
Institute of Quality Assurance Hesse, Eschborn, Germany.
[4
]
Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.
[5
]
Children's Hospital, Philipps University, Marburg, Germany.
[6
]
Department of Neonatal Medicine, Karolinska University Hospital, Stockholm, Sweden.
[7
]
Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm,
Sweden.