Titre fluctuations of the A and B antigens in the spermal plasma of secretors.
D000941:Antigens / Q000032:analysis*; D001789:Blood Group Antigens; D001826:Body Fluids / Q000032:analysis*; D006801:Humans; D008297:Male; D013094:Spermatozoa
D000941:Antigens; D001789:Blood Group Antigens