title: Should spontaneous or timed intercourse guide couples trying to conceive?
authors.forename: H K A
authors.initials: HK
authors.lastname: Snick
mesh_terms: D002986:Clinical Trials as Topic; D003075:Coitus; D005193:Family Planning Services / Q000379:methods*; D005260:Female; D005298:Fertility; D005306:Fertilization; D006801:Humans; D008297:Male; D011247:Pregnancy; D012189:Retrospective Studies; D013997:Time Factors