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Creatine phosphokinase, the MMPI, and psychosis

Published Online:https://doi.org/10.1176/ajp.141.4.584

The mean creatine phosphokinase level of 41 psychotic patients was significantly higher than that of 30 nonpsychotic psychiatric patients, as were their MMPI paranoia and schizophrenia scores. Their creatine phosphokinase level was negatively correlated with hysteria and psychopathic deviance.

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