A study on the influence of ABO blood groups on fertility.
D000937:Antigen-Antibody Reactions; D000941:Antigens; D001789:Blood Group Antigens; D001787:Blood Group Incompatibility; D005260:Female; D006801:Humans; D007246:Infertility; D008297:Male; D011247:Pregnancy; D013094:Spermatozoa / Q000276:immunology
D000941:Antigens; D001789:Blood Group Antigens