1 Department of Obstetrics and Gynecology, Gaia/Espinho Local Health Unit. Electronic address: joana.galvao@ulsge.min-saude.pt.
2 Department of Obstetrics and Gynecology, Gaia/Espinho Local Health Unit.
3 Department of Pediatrics/Neonatology, São João Local Health Unit.
4 Department of Obstetrics and Gynecology, Aveiro Region Local Health Unit.
5 Department of Obstetrics and Gynecology, Gaia/Espinho Local Health Unit; CINTESIS - Center for Health Technology and Services Research, University of Port; Department of Medical Sciences, University of Aveiro.