[Report on a 15-month stay in North America].
D002917:Chymopapain / Q000627:therapeutic use; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging / Q000188:drug therapy; D010690:Phlebography
D002917:Chymopapain
Compte rendu d'un séjour de quinze mois en Amérique du Nord