Leopold Koss

Leopold George Koss was a professor at the Albert Einstein College of Medicine. He has been called one of the founding fathers for the field of cytopathology.

Koss was born in Langfuhr, Poland. He escaped Nazi persecution in 1942 by entering Switzerland, where he was eventually allowed to continue studying medicine. He received his M.D. degree from the University of Bern, Switzerland in 1946. His parents and sisters died during the Holocaust.

Source: Wikipedia