PT - JOURNAL ARTICLE AU - Cohen, Marvin B. AU - Spolter, Leonard AU - Chang, C. C. AU - MacDonald, Norman S. AU - Takahashi, Joseph AU - Bobinet, Darrell D. TI - Immobilized Enzymes in the Production of Radiopharmaceutically Pure Amino Acids Labeled with <sup>13</sup>N DP - 1974 Dec 01 TA - Journal of Nuclear Medicine PG - 1192--1195 VI - 15 IP - 12 4099 - http://jnm.snmjournals.org/content/15/12/1192.short 4100 - http://jnm.snmjournals.org/content/15/12/1192.full SO - J Nucl Med1974 Dec 01; 15