#8	#5 AND #6 AND #7
#7	'crossover procedure'/exp OR 'double‐blind procedure'/exp OR 'randomised controlled trial'/exp OR 'single‐blind procedure'/exp OR random* OR factorial* OR crossover* OR (cross NEXT/1 over*) OR placebo* OR (doubl* NEAR/1 blind*) OR (singl* NEAR/1 blind*) OR assign* OR allocat* OR volunteer*
#6	'ct scan*':ti,ab OR 'computed tomography':ti,ab OR 'computerized tomography':ti,ab OR 'ct x ray*':ti,ab OR 'tomodensitometry':ti,ab OR 'cat scan':ti,ab OR 'cine ct':ti,ab OR 'electron beam tomography':ti,ab OR 'x‐ray computed tomography'/exp
#5	#1 OR #2 OR #3 OR #4
#4	'pleura tumour'/exp OR 'mpm':ti,ab OR 'pleural cancer*':ti,ab OR 'pleural malignan*':ti,ab OR 'pleural mesothelioma*':ti,ab OR 'pleural neoplasm*':ti,ab OR 'pleural tumo*':ti,ab
#3	'small cell lung cancer'/exp OR 'oat cell carcinoma*':ti,ab OR 'oat cell lung cancer*':ti,ab OR 'sclc':ti,ab OR 'small cell lung cancer*':ti,ab OR 'small cell lung carcinoma*':ti,ab
#2	'non small cell lung cancer'/exp OR 'nonsmall cell lung cancer*':ti,ab OR 'non small cell lung cancer*':ti,ab OR 'nonsmall cell lung carcinoma*':ti,ab OR 'non small cell lung carcinoma*':ti,ab OR 'nsclc':ti,ab
#1	'bronchopulmonary carcino*':ti,ab OR 'cancer of lung*':ti,ab OR 'cancer of the lung*':ti,ab OR 'lung adenocarcimoma*':ti,ab OR 'lung cancer*':ti,ab OR 'lung carcinoma*':ti,ab OR 'lung malignan*':ti,ab OR 'lung neoplasm*':ti,ab OR 'lung tumo*':ti,ab OR 'pulmonary adenocarcinoma*':ti,ab OR 'pulmonary cancer*':ti,ab OR 'pulmonary carcino*':ti,ab OR 'pulmonary malignan*':ti,ab OR 'pulmonary neoplasm*':ti,ab OR 'pulmonary tumo*:ti,ab' OR 'lung tumor'/exp