Concordance between clinical and UKBBv2 array antigen typing. (A) Overview of concordance analysis and high-level categorization of results. (B) Concordance per antigen is shown as a percentage of the total number of comparisons (given at the top of each bar) with concordant and discordant results in green and red, respectively. (C) Categorization by error type of discordances for the different RBC antigen systems and for the HPA-5 system.