No.	Search terms
1	*advanced practice nurse/
2	*clinical nurse specialist/
3	*expert nurse/
4	*nurse consultant/
5	(nurs* adj1 (clinician? or specialist? or expert?)).ti,ab.
6	(advance? practice adj1 nurs*).ab.
7	((nurse or nurses or nursing) adj1 (assistant? or assistive personnel)).ti,ab.
8	((usual or conventional) adj4 nursing).ti,ab.
9	((nurse or nursing) adj1 (consultant? or advisor?)).ti,ab.
10	((nurse or nurses or nursing) adj2 (roster? or rostering)).ti,ab.
11	(fewer adj2 ("rn" or "rns" or nurses or nurse or registered nurse?)).ti,ab.
12	("nurse? patient? ratio?" or "patient? nurse? ratio?").ti,ab.
13	(nurs* and (mix or skillmix)).ti,ab.
14	*nursing staff/
15	*nursing/
16	or/14‐15
17	*"organization and management"/
18	16 and 17
19	(nurs* adj3 (staffing or delivery or model?)).ti,ab.
20	exp *nurse practitioner/
21	or/18‐20
22	hospital?.ti,ab,hw.
23	21 and 22
24	or/1‐13,23
25	randomized controlled trial/
26	controlled clinical trial/
27	quasi experimental study/
28	pretest posttest control group design/
29	time series analysis/
30	experimental design/
31	multicenter study/
32	(randomis* or randomiz* or randomly).ti,ab.
33	groups.ab.
34	(trial or multicentre or multicenter or multi centre or multi center).ti.
35	(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.
36	or/25‐35
37	(systematic review or literature review).ti.
38	"cochrane database of systematic reviews".jn.
39	exp animals/ or exp invertebrate/ or animal experiment/ or animal model/ or animal tissue/ or animal cell/ or nonhuman/
40	human/ or normal human/ or human cell/
41	39 not (39 and 40)
42	37 or 38 or 41
43	36 not 42
44	health economics/
45	exp economic evaluation/
46	exp health care cost/
47	exp fee/
48	budget/
49	funding/
50	budget*.ti,ab.
51	cost*.ti.
52	(economic* or pharmaco?economic*).ti.
53	(price* or pricing*).ti,ab.
54	(cost* adj2 (effective* or utilit* or benefit* or minimi* or unit* or estimat* or variable*)).ab.
55	(financ* or fee or fees).ti,ab.
56	(value adj2 (money or monetary)).ti,ab.
57	or/44‐56
58	43 or 57
59	24 and 58