#	Searches	Results
1	small cell lung cancer.mp.	66,316
2	exp Small Cell Lung Carcinoma/	3993
3	1 or 2	67,529
4	immunotherapy.mp.	105,565
5	Programmed Cell Death 1 Receptor/or PD1 inhibitor.mp. or PDL1 inhibitor.mp.	6485
6	CTLA-4 Inhibitor.mp.	91
7	pembrolizumab.mp.	3958
8	nivolumab.mp. or nivolumab/	5008
9	ipilimumab.mp. or Ipilimumab/	3565
10	avelumab.mp.	422
11	tremelimumab.mp.	283
12	atezolizumab.mp.	1067
13	durvalumab.mp.	503
14	4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13	114,500
15	Antineoplastic Agents/	277,204
16	cisplatin.mp. or Cisplatin/	75,659
17	carboplatin.mp. or Carboplatin/	17,588
18	Paclitaxel.mp. or Paclitaxel/	37,346
19	etoposide.mp. or Etoposide/	25,396
20	chemotherapy.mp.	441,677
21	15 or 16 or 17 or 18 or 19 or 20	669,235
22	randomised controlled trial.pt.	507,927
23	controlled clinical trial.pt.	93,720
24	randomised.ab.	483,103
25	placebo.ab.	208,619
26	drug therapy.fs.	2,212,406
27	randomly.ab.	335,363
28	trial.ab.	509,238
29	groups.ab.	2,058,166
30	22 or 23 or 24 or 25 or 26 or 27 or 28 or 29	472,7391
31	animals/	6,621,020
32	human/	18,535,892
33	31 not (31 and 32)	4,675,617
34	30 not 33	4,101,212
35	3 and 14 and 21 and 34	1125
35	limit 34 to yr = “2010-Current”	1040