#1 'non small cell lung cancer'/exp

#2 'nsclc':ab,ti

#3 'lung cancer*':ab,ti

#4 'lung carcinoma*':ab,ti

#5 'lung neoplasm*':ab,ti

#6 'lung tumor*':ab,ti

#7 'lung tumour*':ab,ti

#8 'non small cell*':ab,ti

#9 'nonsmall cell*':ab,ti

#10 #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9

#11 'video assisted thoracic surgery'/exp

#12 'vats':ab,ti

#13 'video assist*':ab,ti

#14 'lung resection'/exp

#15 'pneumonectom*':ab,ti

#16 'lobectom*':ab,ti

#17 'segmentectom*':ab,ti

#18 'resect*':ab,ti

#19 'thoracotomy'/exp

#20 'thoracotom*':ab,ti

#21 'thoracoscop*':ab,ti

#22 'minimally invasive surgery'/exp

#23 'minimally invasive':ab,ti

#24 #11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 OR #18 OR #19 OR #20 OR #21 OR #22 OR #23

#25 'crossover procedure'/exp OR 'double‐blind procedure'/exp OR 'randomized 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*

#26 #10 AND #24 AND #25

#27 #10 AND #24 AND #25 AND [1‐1‐1995]/sd