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Study selection process, total number of patients that were included and excluded, and details on the size of each tested group and kits based on the STARD guidelines. Out of 3098 available samples, 3089 samples were included in the study. Number of SARS-CoV-2 PCR positive (equal or above or below 14 days after first positive PCR) and negative samples tested with each of the serology assays are presented.
