title: Association of the type and time of insemination within the menstrual cycle with the human sex ratio at birth.
mesh_terms: D000328:Adult; D001831:Body Temperature; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007314:Insemination; D007315:Insemination, Artificial; D008297:Male; D008423:Maternal Age; D008598:Menstruation; D010060:Ovulation; D010298:Parity; D011247:Pregnancy; D011336:Probability; D012744:Sex Ratio; D013995:Time; D013997:Time Factors; D014481:United States