A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) in Combination With Copegus (Ribavirin) in Patients With Chronic Hepatitis C (CHC) Enrolled in a Methadone Maintenance Treatment Program. [clinicaltrials:NCT00087594]

A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) in Combination With Copegus (Ribavirin) in Patients With Chronic Hepatitis C (CHC) Enrolled in a Methadone Maintenance Treatment Program. [clinicaltrials:NCT00087594]