title: Further concepts on regulators of the sex ratio in human offspring. Non-optimal maturation of oocytes and the sex ratio.
authors.affiliation: Department of Medical Informatics, Epidemiology and Statistics, University of Nijmegen, 6500 HB Nijmegen, The Netherlands.
authors.forename: P H
authors.initials: PH
authors.lastname: Jongbloet
authors.forename: J M
authors.initials: JM
authors.lastname: Groenewoud
authors.forename: G A
authors.initials: GA
authors.lastname: Zielhuis
mesh_terms: D005260:Female; D005313:Fetal Death; D005498:Follicular Phase; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy; D012621:Seasons; D012744:Sex Ratio; D013997:Time Factors