title: Letter: Diagnosing caffeinism.
mesh_terms: D000342:Affective Symptoms / Q000139:chemically induced / Q000175:diagnosis*; D001007:Anxiety; D002110:Caffeine / Q000506:poisoning; D003069:Coffee; D004326:Drinking; D006801:Humans; D008297:Male
chemical_list: D003069:Coffee; D002110:Caffeine