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The six‐minute walk test (6MWT) has been used in patients with sickle cell disease (SCD), in conjunction with tricuspid regurgitant velocity (TRV) and plasma N‐terminal pro‐brain natriuretic peptide (NT‐pro BNP), to assess risk of having pulmonary hypertension. Exercise‐induced vital sign changes (VSCs) are predictors of clinical outcomes in other diseases. In this study, we assess the predictors...
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