No.	Search terms	Results
1	drug industry/	32073
2	advertising as topic/	14219
3	marketing/	4982
4	gift giving/	1521
5	((pharmaceutical or drug or medical or company or industry or marketing or sales) adj1 representative*).ti,ab,kf.	1273
6	((drug or pharmaceutical) adj1 promotion).ti,ab,kf.	290
7	((industry or company or pharmaceutical) adj1 sponsor*).ti,ab,kf.	1474
8	((sponsor* or fund* or subsidise* or subsidize* or subsidies or subsidy or compensat*) adj2 (meal* or meeting* or activit* or gift* or event* or lecture* or trial* or lunch* or education* or conference* or trip* or product* or course* or dinner* or food or item* or drug* or medication* or drink* or travel*)).ti,ab,kf.	9975
9	((free or medical or drug or medication) adj sample).ti,ab,kf.	408
10	industry payment*.ti,ab,kf.	114
11	(detailman or detailmen or detail men or detail man).ti,ab,kf.	33
12	(commercial* adj1 (information or bias* or influence* or support*)).ti,ab,kf.	422
13	((drug? or pharma*) adj1 (industry or firm? or manufacture* or company or companies)).ti,ab,kf.	22267
14	gift?.ti,ab,kf.	5260
15	or/1‐14	79426
16	prescri*.ti,ab,kf.	195033
17	exp prescriptions/	32491
18	inappropriate prescribing/	2492
19	formularies, hospital/	0
20	formular*.ti,ab,kf.	4634
21	attitude of health personnel/	114252
22	"conflict of interest"/	9257
23	(conflict* adj1 interest).ti,ab,kf.	65
24	((physician* or professional*) adj1 (behaviour or behavior)).ti,ab,kf.	2005
25	pharmaceutical preparations/	51396
26	(physician* adj2 attitude?).ti,ab,kf.	2977
27	or/16‐26	380064
28	15 and 27	11872
29	randomized controlled trial.pt.	476544
30	controlled clinical trial.pt.	92921
31	multicenter study.pt.	245584
32	pragmatic clinical trial.pt.	976
33	(randomis* or randomiz* or randomly).ti,ab.	814150
34	groups.ab.	1883132
35	(trial or multicenter or multi center or multicentre or multi centre).ti.	230276
36	(intervention? or effect? or impact? or controlled or control group? or (before adj5 after) or (pre adj5 post) or ((pretest or pre test) and (posttest or post test)) or quasiexperiment* or quasi experiment* or pseudo experiment* or pseudoexperiment* or evaluat* or time series or time point? or repeated measur*).ti,ab.	8839067
37	non‐randomized controlled trials as topic/	456
38	interrupted time series analysis/	535
39	controlled before‐after studies/	374
40	or/29‐39	9859559
41	exp animals/	22109481
42	humans/	17559673
43	41 not (41 and 42)	4549808
44	review.pt.	2482278
45	meta analysis.pt.	97437
46	news.pt.	193672
47	comment.pt.	754091
48	editorial.pt.	482547
49	cochrane database of systematic reviews.jn.	14033
50	comment on.cm.	754033
51	(systematic review or literature review).ti.	126777
52	or/43‐51	8153853
53	40 not 52	6921732
54	28 and 53	2622
55	cross‐sectional studies/	286402
56	((cross‐sectional or prevalence or transvers*) adj2 (stud* or analys* or data or method* or design* or survey?)).ti,ab,kf.	265336
57	or/55‐56	389043
58	57 not 52	367880
59	28 and 58	293
60	54 or 59	2738