Radial endobronchial ultrasound for the diagnosis of malignant peripheral pulmonary lesions deemed unsuitable for percutaneous CT guided biopsy in a regional 'Difficult Thoracic Biopsy' service. (January 2019) - Tariq, S.; Balata, H.; Martin, J.; Lyons, J.; Crosbie, P.A.J.; Booton, R.; Evison, M.