o.	Search terms
1	*nurse clinicians/
2	advanced practice nursing/
3	(nurs* adj1 (clinician? or specialist? or expert?)).ti,ab.
4	(advance? practice adj1 nurs*).ti,ab.
5	((nurse or nurses or nursing) adj1 (assistant? or assistive personnel)).ti,ab.
6	((usual or conventional) adj4 nursing).ti,ab.
7	((nurse or nursing) adj1 (consultant? or advisor?)).ti,ab.
8	((nurse or nurses or nursing) adj2 (roster? or rostering)).ti,ab.
9	(fewer adj2 ("rn" or "rns" or nurses or nurse or registered nurse?)).ti,ab.
10	("nurse? patient? ratio?" or "patient? nurse? ratio?").ti,ab.
11	(nurs* and (mix or skillmix)).ti,ab.
12	nursing service, hospital/og
13	nursing staff, hospital/og
14	nursing staff, hospital/sd
15	or/1‐14
16	hospital?.ti,ab,hw.
17	nursing team/
18	nurse practitioners/
19	(nurs* adj3 (staffing or delivery or model?)).ti,ab.
20	or/17‐19
21	16 and 20
22	15 or 21
23	randomized controlled trial.pt.
24	controlled clinical trial.pt.
25	multicenter study.pt.
26	pragmatic clinical trial.pt.
27	(randomis* or randomiz* or randomly).ti,ab.
28	groups.ab.
29	(trial or multicenter or multi center or multicentre or multi centre).ti.
30	(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.
31	non‐randomized controlled trials as topic/
32	interrupted time series analysis/
33	controlled before‐after studies/
34	or/23‐33
35	exp animals/
36	humans/
37	35 not (35 and 36)
38	review.pt.
39	meta analysis.pt.
40	news.pt.
41	comment.pt.
42	editorial.pt.
43	cochrane database of systematic reviews.jn.
44	comment on.cm.
45	(systematic review or literature review).ti.
46	or/37‐45
47	34 not 46
48	22 and 47
49	Economics/
50	Value of life/
51	exp "Costs and Cost Analysis"/
52	exp Economics, Hospital/
53	exp Economics, Medical/
54	Economics, Nursing/
55	Economics, Pharmaceutical/
56	exp "Fees and Charges"/
57	exp Budgets/
58	budget*.ti,ab.
59	cost*.ti.
60	(economic* or pharmaco?economic*).ti.
61	(price* or pricing*).ti,ab.
62	(cost* adj2 (effective* or utilit* or benefit* or minimi* or unit* or estimat* or variable*)).ab.
63	(financ* or fee or fees).ti,ab.
64	(value adj2 (money or monetary)).ti,ab.
65	or/49‐64
66	47 or 65
67	22 and 66