title: Sex ratio and heterozygote advantage in cystic fibrosis: hypothesis and research proposal.
authors.forename: W H
authors.initials: WH
authors.lastname: James
mesh_terms: D003550:Cystic Fibrosis / Q000235:genetics*; D005260:Female; D006579:Heterozygote; D006801:Humans; D008297:Male; D012744:Sex Ratio