title: The effect of preconceptional multivitamin supplementation on the menstrual cycle.
abstract: The database of the Hungarian randomised controlled trial of periconceptional multivitamin supplementation for the prevention of neural-tube defects was used to evaluate the length of the pre- and postovulatory phases of the menstrual cycle before and during multivitamin supplementation. The female cycle was more regular (i.e., the variance was lower) during the multivitamin supplementation.
authors.affiliation: Department of Human Genetics and Teratology, National Institute of Hygiene, WHO Collaborating Centre for the Community Control of Hereditary Diseases, Budapest, Hungary.
authors.forename: I
authors.initials: I
authors.lastname: Dudás
authors.forename: M
authors.initials: M
authors.lastname: Rockenbauer
authors.forename: A E
authors.initials: AE
authors.lastname: Czeizel
mesh_terms: D000328:Adult; D005260:Female; D005306:Fertilization / Q000187:drug effects; D005492:Folic Acid / Q000008:administration & dosage; D006801:Humans; D006814:Hungary; D007231:Infant, Newborn; D008597:Menstrual Cycle / Q000187:drug effects*; D009436:Neural Tube Defects / Q000517:prevention & control*; D010060:Ovulation / Q000187:drug effects; D011247:Pregnancy; D011292:Premedication; D014131:Trace Elements / Q000008:administration & dosage; D014815:Vitamins / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D014131:Trace Elements; D014815:Vitamins; D005492:Folic Acid