satisfaction. However, the Deaconess Hospital did name the Lab after him the Shields Warren Laboratory. [7. Blood Counts] BERGE: I'm just about finished. You mentioned something about doing radiation therapy work in UCSFspecifically on the effects on blood count. KOHN: Yes. BERGE: Did you work with, well what kind of work did you do with that? And did you have any collaboration for some of the hematologists at UCSF? KOHN: No, I was no great shakes. But where is that mentioned? That paper was published in 1955, Changes in the Human Leukocyte Count during X-ray Therapy for Cancer and Their Dependence Upon the Integral Dose. 1 had noticed when doing someclinical work that the literature on changes in the blood count was very small, amazingly so. I had a technician who drew the blood and did the counts of patients before, during and after treatment. The results were interest@gthough I still am not sure as to what they mean. Do you understand whatis meant by dose? BERGE What do you mean by I don't understand? KOHN: Well, radiation dose means the amountof radiation given per gram of exposed tissue. What I found wasthat if you irradiated a small part of the neck, you got a certain depression of the blood count. If you irradiated the whole neck, giving the same dose as before, you got a muchlargereffect. 27 a