Fig. 4From: Prognostic impact of hypochromic erythrocytes in patients with pulmonary arterial hypertensionDistribution of hypochromic erythrocytes (%) in patients. The grey dashed line indicates the cut-off of 2% of hypochromic erythrocytes. The majority of patients had hypochromic erythrocytes < 2% (n = 41)Back to article page