keywords 2 Aetiology 2.1 Biological and endogenous factors 2.4 Surveillance and distribution 32 Biomedical and Clinical Sciences 3211 Oncology and Carcinogenesis 4 Detection, screening and diagnosis 4.4 Population screening 42 Health Sciences 4202 Epidemiology 4203 Health Services and Systems Cancer Chronic Obstructive Pulmonary Disease Lung Lung Cancer Respiratory