title: Comparison of ovarian function markers in users of hormonal contraceptives during the hormone-free interval and subsequent natural early follicular phases.
authors.affiliation: Department of Pediatric Oncology/Hematology, VU University Medical Center (VUmc), PO Box 7057, 1007 MB Amsterdam, The Netherlands. mh.vandenberg@vumc.nl
authors.forename: M H
authors.initials: MH
authors.lastname: van den Berg
authors.forename: E
authors.initials: E
authors.lastname: van Dulmen-den Broeder
authors.forename: A
authors.initials: A
authors.lastname: Overbeek
authors.forename: J W R
authors.initials: JW
authors.lastname: Twisk
authors.forename: R
authors.initials: R
authors.lastname: Schats
authors.forename: F E
authors.initials: FE
authors.lastname: van Leeuwen
authors.forename: G J
authors.initials: GJ
authors.lastname: Kaspers
authors.forename: C B
authors.initials: CB
authors.lastname: Lambalk