00725nam a22002291 4500 med48000302 DLC 20260227111609.0 870805s1947 dcua 000 0 eng c med48000302 U.S. Army Medical Libr./ICU ICU DLC QH505 .S92 574.1072 Symposium on the Use of Isotopes in Biological Research (1947 : University of Chicago) Report. [Washington? 1947] 2, 2, 3 l., 59, 32 p. illus. 28 cm. Cover title. "Sponsored by the Committee on Growth of the National Research Council." Isotopes. Radioactive tracers in biology. 38880 38880