The Rh blood group system.
D000818:Animals; D004899:Erythroblastosis, Fetal; D005260:Female; D005602:France; D005826:Genetics, Medical; D006168:Guinea Pigs; D000882:Haplorhini; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy; D011817:Rabbits; D012204:Rh-Hr Blood-Group System / Q000266:history*; D006113:United Kingdom; D014481:United States
D012204:Rh-Hr Blood-Group System