Kasuistik Methadone augmentation of clozapine in treatment-resistant schizophrenia without opiates addiction: a case report G Guaiana, C Salvioli, G Mariconda DOI: https://doi.org/10.4414/sanp.2009.02057 Publication Date: 04.03.2009 Schweiz Arch Neurol Psychiatr. 2009;160(03):122-123 This text is only available as PDF .