00600nam a2200169Ia 450000500170000000800410001703500090005804100080006708200100007510000370008524501050012226000430022730000150027049000070028550500880029265000500038020260808125309.0260808s9999||||xx |||||||||||||| ||und||  a1249  aENG  a577.1  aSociety for Experimental Biology 0aSymposia of the society for experimental biology (No-11)bthe biological action of growth substances  aBaltimorebUniversity Park Pressc1957  aviii + 344  a11  aExperimental biology, Symposium, Biological sciences, Research proceedings, Biology  aBiologybBiochemistry -- Biological chemistry