1 Gaia/Espinho Local Health Unit, Department of Obstetrics and Gynecology, Vila Nova de Gaia, Portugal. Electronic address: [email protected].
2 Gaia/Espinho Local Health Unit, Department of Obstetrics and Gynecology, Vila Nova de Gaia, Portugal.
3 São João Local Health Unit, Department of Pediatrics/Neonatology, Porto, Portugal.
4 Aveiro Region Local Health Unit, Department of Obstetrics and Gynecology, Aveiro, Portugal.
5 Gaia/Espinho Local Health Unit, Department of Obstetrics and Gynecology, Vila Nova de Gaia, Portugal; CINTESIS - Center for Health Technology and Services Research, University of Port, Porto, Portugal; Department of Medical Sciences, University of Aveiro, Aveiro, Portugal.