[The black hole of substitution].
Gourarier
L
L
Touzeau
D
D
D001569:Benzodiazepines / Q000627:therapeutic use*; D015658:HIV Infections / Q000209:etiology / Q000517:prevention & control; D006801:Humans; D009294:Narcotics / Q000627:therapeutic use*; D019966:Substance-Related Disorders / Q000150:complications / Q000188:drug therapy*
D009294:Narcotics; D001569:Benzodiazepines
La boîte noire de la substitution.