title: A double-blind study of pentylenetetrazol combined with niacin in senile patients.
mesh_terms: D000368:Aged; D002986:Clinical Trials as Topic; D003704:Dementia / Q000188:drug therapy*; D006801:Humans; D008297:Male; D009539:Nicotinic Acids / Q000627:therapeutic use*; D010433:Pentylenetetrazole / Q000627:therapeutic use*
chemical_list: D009539:Nicotinic Acids; D010433:Pentylenetetrazole