DP - MPI Library TY - JOUR AU - Rugh, Roberts AU - Davis, George E. T1 - Nuclear Physics UR - https://www.jstor.org/stable/1294138 UR - http://dx.doi.org/10.2307/1294138 T2 - BioScience SP - Vol. 18, No. 5 (1968), p. 452 PY - 1968 N1 - Copyright: Copyright 1968 American Institute of Biological Sciences ER -