Xu, Xi-Qi Reply to "Comment on direct bilirubin as predictor of severity and mortality in idiopathic pulmonary arterial hypertension". [electronic resource] - International journal of cardiology 07 2017 - 36 p. digital Publication Type: Letter; Comment ISSN: 1874-1754 Standard No.: 10.1016/j.ijcard.2017.05.034 doi Subjects--Topical Terms: BilirubinFamilial Primary Pulmonary HypertensionHumansHypertension, Pulmonary