Some early and surprising blood group findings.
D000818:Animals; D001789:Blood Group Antigens; D001803:Blood Transfusion / Q000266:history*; D002417:Cattle; D005260:Female; D005611:Freemartinism / Q000266:history; D049673:History, 20th Century; D006801:Humans; D008131:London; D008297:Male
D001789:Blood Group Antigens