Radiation from Medical Procedures

                           in the Pathogenesis of

                     Cancer and Ischemic Heart Disease:


        Dose-Response Studies with Physicians per 100,000 Population


              John W. Gofman, M.D., Ph. D.
              Professor Emeritus, Molecular and Cell Biology
              University of California, Berkeley

                                           Edited by Egan O'Connor


        * Hypothesis-1: Medical radiation is a highly important cause
          (probably the principal cause) of cancer mortality in the
          United States during the Twentieth Century. Medical radiation
          means, primarily, exposure by xrays (including fluoroscopy
          and CT scans).

        * Hypothesis-2: Medical radiation, received even at very low
          and moderate doses, is an important cause of death from
          Ischemic Heart Disease; the probable mechanism is
          radiation-induction of mutations in the coronary arteries,
          resulting in dysfunctional clones (mini-tumors) of smooth
          muscle cells.


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                            First Edition: 1999

                            C.N.R. Book Division

                 Committee for Nuclear Responsibility, Inc.

                           Post Office Box 421993

                      San Francisco, California 94142

                                   U.S.A.