title: Pigmented hyperkeratosis among schizophrenic patients treated with nicotinic acid.
mesh_terms: D000367:Age Factors; D014150:Antipsychotic Agents / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D006801:Humans; D007642:Keratosis / Q000139:chemically induced*; D008297:Male; D009539:Nicotinic Acids / Q000009:adverse effects* / Q000627:therapeutic use; D010640:Phenothiazines; D012559:Schizophrenia / Q000188:drug therapy*
chemical_list: D014150:Antipsychotic Agents; D009539:Nicotinic Acids; D010640:Phenothiazines