Hazards of drug dependency among physicians.
D006801:Humans; D008297:Male; D008875:Middle Aged; D010656:Phenylephrine / Q000009:adverse effects; D010820:Physicians; D012631:Secobarbital / Q000009:adverse effects; D013375:Substance Withdrawal Syndrome; D019966:Substance-Related Disorders
D012631:Secobarbital; D010656:Phenylephrine