title: Sex ratio of haptoglobin heterozygotes in relation to parental phenotypes.
mesh_terms: D001315:Australia; D005260:Female; D005860:Germany, West; D006242:Haptoglobins; D006579:Heterozygote; D006801:Humans; D007564:Japan; D008297:Male; D010641:Phenotype; D012537:Scandinavian and Nordic Countries; D012744:Sex Ratio
chemical_list: D006242:Haptoglobins