vonDungern introduced the term 0 (null) for the group Landsteiner designated as C, and AB for the type discovered by Adriano sturli and Alfred von decastello
Cancer Research, where E. vonDungern was his department head. Hirszfeld soon formed a close personal friendship with Dungern which proved to be scientifically
instroduced by Polish physician Ludwik Hirszfeld and German physician EmilvonDungern. There was another confusion on the use of O which was introduced in