An association between ABO blood groups and fertility in a normal American population.
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D005006:Ethnicity; D005298:Fertility; D006801:Humans; D012106:Research; D014481:United States
D000017:ABO Blood-Group System; D001789:Blood Group Antigens
BLOOD GROUPS; FERTILITY