[BMJ Publishing Group Ltd and British Thoracic Society British Thoracic Society Winter Meeting 2017, QEII Centre Broad Sanctuary Westminster London SW1P 3EE, 6 to 8 December 2017, Programme and Abstracts - ()] Advances in understanding chronic thrombo-embolic disease and pulmonary hypertension - S112 Conditioned media from human pulmonary arterial endothelial cells treated with hepcidin or haemoglobin cause proliferation and migration of human pulmonary artery smooth muscle cells