TY - BOOK AU - Zirkle,Raymond E. TI - Biological effects of external X and gamma radiation: pt. 1 U1 - 612.01448 PY - 1954/// CY - New York PB - McGraw-Hill KW - Radiobiology KW - Radiation KW - Physiological effect KW - X - Rays KW - Radioactivity N1 - Includes index ER -