Historical perspectives before 1945 - updated.
D000818:Animals; D000941:Antigens / Q000266:history; D001789:Blood Group Antigens; D002417:Cattle; D002645:Chickens; D004912:Erythrocytes / Q000276:immunology*; D005260:Female; D049673:History, 20th Century; D049711:History, Modern 1601-; D006801:Humans; D008253:Macaca mulatta; D010215:Papio; D011817:Rabbits; D012011:Red Cross / Q000266:history*; D012756:Sheep; D014481:United States
D000941:Antigens; D001789:Blood Group Antigens