LAUSR

Department of Epidemiology, Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China; Department of Pulmonary Diseases, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands; Department of Pulmonology, Medisch Spectrum Twente, Enschede, The Netherlands; Department of Radiology, Shanghai Changzheng Hospital, The Second Military Medical University Shanghai, Shanghai 200003, China; University of Groningen, Groningen, The Netherlands Contributions: (I) Conception and design: Y Du, G Sidorenkov, HJM Groen, R Vliegenthart, MA Heuvelmans, S Liu, M Oudkerk, GH de Bock; (II) Administrative support: None; (III) Provision of study materials or patients: None; (IV) Collection and assembly of data: Y Du, X Cui, G Sidorenkov, S Liu, GH de Bock; (V) Data analysis and interpretation: All authors; (VI) Manuscript writing: All authors; (VII) Final approval of manuscript: All authors. Correspondence to: Geertruida H. de Bock. Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, PO Box 30.001, FA 40, 9700 RB Groningen, The Netherlands. Email: [email protected].