NATIONAL 193,431 The national cancer program and international cancer research. Conference held at National Institutes of Health National Cancer Institute Bethesda, Maryland December 27, 1972. Conference chairman: John R. Heller, Anthony M. Bruno. Ed. by John R. Heller and Anthony M. Bruno. Bethesda 1974 U.S.Department of Health, Education, and Welfare 4° s. VII, nlb. 1, 91, ilustr. National Cancer Institute Monograph 40.