During the summer of , the future psychoanalyst. From there, Koller quickly moved to trials on himself, then on a few colleagues, followed by a handful of patient volunteers. Above left: Dr. Koller as a young man in Vienna. In January , an anti-Semitic insult resulted in a duel between Koller and another medical student. Koller won the saber fight, wounding his opponent, but injured his own future in Vienna. Center: Dr. Sigmund Freud. Above right: the Lucien Howe medal.