Transfusion of racially unmatched blood.
D000755:Anemia, Sickle Cell / Q000628:therapy; D001771:Blood Banks; D001803:Blood Transfusion; D006801:Humans; D007519:Isoantigens / Q000032:analysis; D044469:Racial Groups; D065227:Transfusion Reaction
D007519:Isoantigens