摘要: My career has been by drift rather than design. Research was not even in my mind when I graduated from medical school. In each new venture since then tried to build on what had gone before, wasting any of it: training medicine, pediatrics, followed the study radiation effects, epidemiology, teratogenesis, and carcinogenesis. For 30 years professional life cancer etiology, with a good portion devoted teratology. Here is an account teratologic half.