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There is a concern about cardiac rhythm disorders related to QTc interval prolongation induced by methadone. A cross-sectional study was designed to evaluate the prevalence of long QTc (LQTc) interval in patients in methadone maintenance treatment (MMT) and risk factors for LQTc.The study population included 109 subjects (74 males, median age 43 years). Socio-demographic and toxicological variables...
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