No.	Search terms	Results
1	ethic* consult*.ti.	53
2	(moral adj1 (review? or case deliberation? or consult*)).ti,ab.	34
3	((bioethic* or ethic*) adj2 (case review? or deliberation? or intervention? or round? or service? or consult* or decision?)).ti,ab.	3270
4	(ethicist? or bioethicist?).ti,ab.	1020
5	clinical ethic* committee?.ti,ab.	30
6	(bioethic* or ethic*).hw.	41,155
7	professional consultation/	8801
8	6 and 7	292
9	or/2‐5,8	4471
10	(clinical trial or empirical study or experimental replication or followup study or longitudinal study or prospective study or quantitative study or treatment outcome).md.	2,317,821
11	experimental design/	10,868
12	between groups design/	112
13	quantitative methods/	3086
14	quasi experimental methods/	145
15	(randomised or randomized or randomly or controlled or control group? or evaluat* or time series or time point or time points or quasi experiment* or quasiexperiment* or (before adj5 after) or (pre adj5 post) or ((pretest or pre test) and (posttest or post test)) or multicenter study or multicentre study or multi center study or multi centre study or repeated measur*).ti,ab.	757,950
16	(trial or effect? or impact? or intervention?).ti.	433,863
17	exp clinical trial/	11,060
18	((clinical or control*) adj3 trial*).ti,ab.	65,496
19	((singl* or doubl* or trebl* or tripl*) adj5 (blind* or mask*)).ti,ab.	24,723
20	(volunteer* or control group or controls).ti,ab.	229,264
21	placebo/ or placebo*.ti,ab.	38,106
22	pretesting/	237
23	posttesting/	135
24	repeated measures/	664
25	time series/	1926
26	or/10‐25	2,704,602
27	1 or (9 and 26)	2015