title: Validity issues relating to time-to-pregnancy studies of fertility.
authors.affiliation: Department of Occupational Medicine, Aarhus University Hospital, Aarhus, Denmark. jpbon@as.aaa.dk
authors.forename: Jens Peter
authors.initials: JP
authors.lastname: Bonde
authors.forename: Mike
authors.initials: M
authors.lastname: Joffe
authors.forename: Markku
authors.initials: M
authors.lastname: Sallmén
authors.forename: Petter
authors.initials: P
authors.lastname: Kristensen
authors.forename: Jørn
authors.initials: J
authors.lastname: Olsen
authors.forename: Nel
authors.initials: N
authors.lastname: Roeleveld
authors.forename: Allen
authors.initials: A
authors.lastname: Wilcox
mesh_terms: D015982:Bias; D003627:Data Interpretation, Statistical; D004812:Epidemiologic Methods; D005260:Female; D005298:Fertility; D005306:Fertilization; D006801:Humans; D008297:Male; D011247:Pregnancy; D049168:Pregnancy, Unplanned; D012098:Reproduction; D012725:Sexual Behavior; D011795:Surveys and Questionnaires; D013997:Time Factors