title: Genetic heterogeneity in control mechanisms of human reproduction: significance for isolation of patient subgroups.
authors.forename: P
authors.initials: P
authors.lastname: Cohen
mesh_terms: D002909:Chronobiology Phenomena / Q000235:genetics* / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D010507:Periodicity; D011247:Pregnancy; D012098:Reproduction / Q000235:genetics* / Q000502:physiology; D012621:Seasons