Methods for obtaining valid data on time to pregnancy among men and women.
Joffe
M
M
Imperial College School of Medicine, Department of Epidemiology & Public Health, London, United Kingdom. m.joffe@ic.ac.uk
D000328:Adult; D003625:Data Collection / Q000379:methods*; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D011247:Pregnancy / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D013997:Time Factors