Following Landsteiner’s division of human blood into three groups (A, B and O which he named A, B, C), Decastello and Sturli discovered a fourth (the rarest) group, later named AB.
Following Landsteiner’s division of human blood into three groups (A, B and O which he named A, B, C), Decastello and Sturli discovered a fourth (the rarest) group, later named AB.