Co-designing a recruitment strategy for lung cancer screening in high-risk individuals: protocol for a mixed-methods study [version 1; peer review: 1 approved, 2 approved with rese... oleh Prof Nicole Rankin, Prof Kate Brain, Prof Patrick Redmond, Grace Mccutchan, Ahmeda Ali, Prof Frank Doyle, Maeve Reilly, Laura Heavey, Seamus Cotter