Yorkshire Lung Screening Trial (YLST): protocol for a randomised controlled trial to evaluate invitation to community-based low-dose CT screening for lung cancer versus usual care... oleh Richard D Neal, Kevin Franks, David Torgerson, Michael Darby, Una MacLeod, Mark Sculpher, Philip AJ Crosbie, Irene Simmonds, Martyn Kennedy, Nazia Ahmed, Ann Cochrane, Mike Messenger, Puvanendran Tharmanathan