article de recherche
                  Validation of Heroin Craving Questionnaire in Greek Patients under Substitution Treatment with Methadone and Buprenorphine: How to Prevent a Relapse
                  
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					 Christonikos Leventelis, Aristidis S. Veskoukis, Meni Malliori, Michael Koutsilieris, Sophia Zyga, Andrea Paola Rojas Gil, Antzouletta Kampitsi, Nikolaos Goutzourelas and Maria Tsironi