title: A study of the use of hypnotics and tranquilizers.
mesh_terms: D000368:Aged; D004363:Drug Utilization; D006801:Humans; D006993:Hypnotics and Sedatives; D009009:Montana; D009735:Nursing Homes; D014149:Tranquilizing Agents
chemical_list: D006993:Hypnotics and Sedatives; D014149:Tranquilizing Agents