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Discover 10,048 clinical trials near Portland, Oregon. Find research studies in your area.
Showing 9421-9440 of 10,048 trials
NCT01201668
The purpose of this study is to document by survey the occurence of tooth pain present 3 months and 6 months after root canal therapy in the patients recruited for the DPBRN "Peri-operative tooth pain" study. This study will access the feasibility of obtaining 3 month and 6 month follow-up data on the patient enrolled in the DPBRN "Peri-operative tooth pain" study.
NCT00500266
To evaluate the safety of 13-valent pneumococcal conjugate vaccine (13vPnC) in elderly subjects who were vaccinated with one or more doses of 23-valent pneumococcal polysaccharide vaccine (23vPS) at least 3 years before study enrollment.