Figure 8From: Platelet-derived growth factor receptor-β and epidermal growth factor receptor in pulmonary vasculature of systemic sclerosis-associated pulmonary arterial hypertension versus idiopathic pulmonary arterial hypertension and pulmonary veno-occlusive disease: a case-control studyNumber of cases with positive immunostaining for epidermal growth factor receptor (EGFR) in the intima of pulmonary vessels. A: arterioles, B: Small vessels, C: veins) in SScPAH, IPAH, PVOD and normal controls. No staining was observed in the capillaries. Small vessels: those arterioles and/or venules that cannot be distinguished as such by their anatomical localisationBack to article page