title: Cyclical variation in psychotropic drug prescription.
mesh_terms: D000928:Antidepressive Agents / Q000008:administration & dosage; D001067:Appetite Depressants / Q000008:administration & dosage; D001463:Barbiturates / Q000008:administration & dosage; D011307:Drug Prescriptions; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage; D010507:Periodicity; D011619:Psychotropic Drugs / Q000008:administration & dosage*
chemical_list: D000928:Antidepressive Agents; D001067:Appetite Depressants; D001463:Barbiturates; D006993:Hypnotics and Sedatives; D011619:Psychotropic Drugs