title: The epidemiology of infertility: a selected clinic study.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007246:Infertility / Q000453:epidemiology*; D007247:Infertility, Female / Q000453:epidemiology; D007248:Infertility, Male / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D013188:Sri Lanka