A possible role of secretor-ABO interactions in the maintenance of variability at the I locus.
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D005260:Female; D005826:Genetics, Medical; D006801:Humans; D011110:Polymorphism, Genetic; D011247:Pregnancy; D012621:Seasons; D012641:Selection, Genetic
D000017:ABO Blood-Group System; D001789:Blood Group Antigens