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W e have shown recently th a t a certain m etabolic p ro p erty of th eir red blood cells characterizes th e m ajo rity of acute schizophrenic p atien ts against control individuals [1]. T he p ro p e rty is a differential response of the intracellular nucleotide m etabolism of th e ery th ro cy te of ab o u t 2/ 3 to 3/ 4 of these p atien ts to m ethylene blue.
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