Collaborative Cohort of Cohorts for COVID-19 Research (C4R) Study: Study Design
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DOI: 10.1093/aje/kwac032
Abstract: Abstract The Collaborative Cohort of Cohorts for COVID-19 Research (C4R) is a national prospective study of adults comprising 14 established United States (US) prospective cohort studies. Starting as early as 1971, C4R cohorts have collected… read more here.
Keywords: c4r; research; cohort cohorts; collaborative cohort ... See more keywords