University Medical Center Utrecht, Utrecht, Netherlands
University Medical Center utrecht, Utrecht, Netherlands
University Medical Center Utrecht, Utrecht, Netherlands
University Medical Center Utrecht, Utrecht, Netherlands
CASA, Centre for Contraception, Sexuality and Abortion clinic,, Leiden, Netherlands
Julius Center for Health Sciences and Primary care, Utrecht, Netherlands
Radboud UMC, Nijmegen, Gelderland, Netherlands
NKI-AvL, Amsterdam, Noord-Holland, Netherlands
University Hospitals Leuven, Leuven, Vlaans-Brabant, Belgium
General practionners " de Grebbe", Rhenen, Netherlands
Amphia Ziekenhuis, Breda, Netherlands
UMCN St. Radboud, Nijmegen, Netherlands
Rotterdam Eye Hospital, Rotterdam, Netherlands
University Medical Center Utrecht, Utrecht, Netherlands