CRP and pulmonary arterial hypertension: CHF: congestive heart failure; PHT: pulmonary hypertension; CRP: C-reactive protein; WBC: white blood cells; NLR: neutrophil-to-lymphocyte ratio; MLR: monocyte-to-lymphocyte ratio; PLR: platelet-to-lymphocyte ratio; CAR: CRP to albumin ratio; SII: systemic immune inflammation index; PIV: pan immune inflammation value.