Puerto Rico
['Phase 2 Study of VX-950, Pegasys and Copegus in Hepatitis C', 'Puerto Rico', 'United States of America', 'A Phase 2 Study of VX-950 in Combination With Peginterferon Alfa-2a (Pegasys®) and Ribavirin (Copegus®) in Subjects With Hepatitis C', 65, 'clinical trial']