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Discover 17,868 clinical trials near Massachusetts. Find research studies in your area.
Showing 16401-16420 of 17,868 trials
NCT00846287
The purpose of this study is to determine efficacy of MR imaging with hyperpolarized helium-3 gas in COPD patients both before and after treatment.
NCT00037076
The purpose of this study is to find out how many children who are infected with HIV are also infected with hepatitis C virus (HCV). HCV infection is a major health concern. HIV-infected adults who are co-infected with HCV appear to have more rapid HIV disease progression. There is little data on how widespread HCV is among children who are HIV-infected. Information from this study will help determine the need for future HCV studies. This study also will obtain blood samples for future testing for other hepatitis viruses such as hepatitis G virus (HGV or GB virus C).