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Safety and Antiviral Activity Study of ACH-126,443 (Beta-L-Fd4C) in Treatment-naive Adults With Chronic Hepatitis B Virus Infection

Combination Chemotherapy Plus Radiation Therapy in Treating Patients With Advanced Head and Neck Cancer

Treatment of Posttraumatic Stress Disorder in Kosovar High School Students Using Mind-Body Skills Groups

Combination Chemotherapy Compared With No Treatment Following Surgery in Treating Patients With Non-small Cell Lung Cancer