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ADAMTS13 and von Willebrand factor (VWF) antigen (Ag) levels by ABO genetic groups. Chronic thromboembolic pulmonary hypertension (CTEPH) (n=182) and chronic thromboembolic disease (CTED) (n=22) patients with genotypes and protein levels available (in n=3, a genetic ABO group could not be inferred) were included. Dunn's test with false discovery rate adjustment was used to calculate p-values. O group, n=51; A group, n=128; B group, n=12; AB group, n=13.
