[Study of erythema perstans].
D004890:Erythema; D006801:Humans; D006967:Hypersensitivity; D007154:Immune System Diseases; D020113:Phenolphthalein / Q000009:adverse effects*
D020113:Phenolphthalein
ALLERGY; ERYTHEMA; PHENOLPHTHALEIN/injurious effects
Contributo allo studio degli eritemi fissi.