Influence of urinary pH on the degree and duration of action of amphetamine on the critical flicker fusion frequency in man.
D000328:Adult; D000661:Amphetamine; D005425:Flicker Fusion; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010919:Placebos; D014556:Urine
D010919:Placebos; D000661:Amphetamine