Inter-racial blood transfusion.
Michael G
MG
Kenny
D001741:Black or African American / Q000266:history; D001803:Blood Transfusion / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007667:Kidd Blood-Group System / Q000266:history; D044465:White People / Q000266:history
D007667:Kidd Blood-Group System