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.