title: KOH preparation for early diagnosis of systemic candidiasis in heroin addicts.
mesh_terms: D001391:Azo Compounds; D002177:Candidiasis / Q000175:diagnosis*; D006197:Hair / Q000382:microbiology; D006556:Heroin Dependence / Q000150:complications*; D006801:Humans
chemical_list: D001391:Azo Compounds; C015844:direct black 3