PRIVACY ACT MATERIAL REMOVED worked with the Lawrence group for somebrief period of time and then came over to Stone's department where he became Assistant Professor of Radiation Therapy and then Associate Professor of Radiation Therapy. He did no experimental work when he was with Stone, but he was interested in it. He contracted leukemia, and he died while I was there. And no doubt, his leukemia resulted from his exposure either in England, well, during his career, whenever, but not in San Francisco. BERGE: Can you talk a little bit about the exposure of most people who worked with radiation at that time? What was the awarenesslevel of the dangers of exposure? KOHN: I think it was very good. I'm sitting here, eighty-five years old. I've been working with radiation since 1947. My colleagues, whom I've known, past and presentare all okay. I think we were quite well aware of the dangers of exposure. BERGE: Was _- ___. particularly... KOHN: Careless? No. I don't think so. I don't know whenhe got his overexposure. It may have been when he wasin England. Orit may have been whenhestarted out in radiology and wasbeing trained as a radiologist in Prague. They may not have been so careful taking X-rays. So he was repeatedly exposed albeit to small amounts of radiation. You know aboutDr. _,of course. He died of leukemia. BERGE: But he was notoriously careless. il. pRivACY ACT MATERIAL REMOVED