Xavier Vieira, R.; Azevedo, M.; Polónio, P.; Manso, C. Determination of Dopamine-Beta-Hydroxylase (DBH) and Monoamine Oxidase (MAO) Activities in Platelets and Plasma in Schizophrenic, Maniac-Depressive and Neurotic Patients. Acta Med Port 1986, 7, 45-48.