Severe pulmonary hypertension associated with lung disease is characterised by a loss of small pulmonary vessels on quantitative computed tomography oleh Dheyaa Alkhanfar, Yousef Shahin, Faisal Alandejani, Krit Dwivedi, Samer Alabed, Chris Johns, Allan Lawrie, A.A. Roger Thompson, Alexander M.K. Rothman, Juerg Tschirren, Johanna M. Uthoff, Eric Hoffman, Robin Condliffe, Jim M. Wild, David G. Kiely, Andrew J. Swift