Fig. 1From: Fractional exhaled nitric oxide in idiopathic pulmonary arterial hypertension and mixed connective tissue disease complicating pulmonary hypertensionAssociation between FeNO levels and PTF parameters in IPAH patients with severe PH. A. Association between FeNO levels and FEV1/FVC. B. Association between FeNO levels and MEF50%. C. Association between FeNO levels and MEF25%. D. Association between FeNO levels and MMEF75/25%. See Tables 1 and 2 legend for expansion of abbreviationsBack to article page