title: Sex ratio associations: opinions, theories, and facts.
authors.forename: Piet H
authors.initials: PH
authors.lastname: Jongbloet
mesh_terms: D000328:Adult; D041322:Chromosomes, Human, Y; D019049:Developed Countries; D005260:Female; D005982:Glutathione Transferase / Q000235:genetics*; D006801:Humans; D007564:Japan; D008297:Male; D018812:Paternal Exposure; D011110:Polymorphism, Genetic; D011247:Pregnancy; D012744:Sex Ratio; D012907:Smoking; D013548:Sweden
chemical_list: D005982:Glutathione Transferase; C413545:glutathione S-transferase T1