title: Prolongation of QT interval in association with the administration of large doses of opiates.
mesh_terms: D000701:Analgesics, Opioid / Q000009:adverse effects*; D000777:Anesthetics / Q000009:adverse effects*; D004562:Electrocardiography; D005283:Fentanyl / Q000009:adverse effects / Q000031:analogs & derivatives*; D006321:Heart / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017409:Sufentanil
chemical_list: D000701:Analgesics, Opioid; D000777:Anesthetics; D017409:Sufentanil; D005283:Fentanyl