RT Journal Article SR Electronic T1 Haemoptysis with subtle computed tomography signs JF Breathe JO Breathe FD European Respiratory Society SP e28 OP e30 DO 10.1183/20734735.0317-2018 VO 15 IS 1 A1 Anas Al Fahad A1 Sylvia Worthy A1 Stephen J. Bourke YR 2019 UL http://breathe.ersjournals.com/content/15/1/e28.abstract AB