Ruben, S. M.; McLean, P. C.; Melville, J. (1989). «Cyclizine abuse among a group of opiate dependents receiving methadone». British Journal of Addiction84 (8): 929-934. PMID2775912. doi:10.1111/j.1360-0443.1989.tb00766.x.
Ruben, S. M.; McLean, P. C.; Melville, J. (1989). «Cyclizine abuse among a group of opiate dependents receiving methadone». British Journal of Addiction84 (8): 929-934. PMID2775912. doi:10.1111/j.1360-0443.1989.tb00766.x.