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Cohorts of dd-cfDNA plasma weekly samples from New York City Metropolitan area categorized as “low risk for rejection” (< 0.5%) and indeterminate risk of rejection with 0.5% to 1.0% and > 1.0% categories, respectively, during the course of coronavirus disease 2019 (COVID-19). The March-April nadir in total number of samples occurred prior to implementation of home remote phlebotomy.
