Doctors at risk.
D000434:Alcoholic Beverages; D000661:Amphetamine; D006801:Humans; D006993:Hypnotics and Sedatives; D010820:Physicians; D012907:Smoking; D019966:Substance-Related Disorders; D014149:Tranquilizing Agents
D006993:Hypnotics and Sedatives; D014149:Tranquilizing Agents; D000661:Amphetamine