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In the letter of Drs. Rose and Price on intramuscular injection of serum creatine phosphokinase (225:417, 1973), gamma-GTP was erroneously expanded in the table to guanosine triphosphate. Correctly, it referred to gammaglutamyl transpeptidase.
Error in Letters. JAMA. 1973;225(10):1250. doi:10.1001/jama.1973.03220380062028