Arnér, Staffan Genuine resistance to opioids--fact or fiction? [electronic resource] - Pain Oct 1991 - 116-118 p. digital Publication Type: Comment; Letter ISSN: 0304-3959 Standard No.: 10.1016/0304-3959(91)90019-T doi Subjects--Topical Terms: Drug ResistanceHumansNarcotics--pharmacology