1	Economics/
2	exp "costs and cost analysis"/
3	Economics, Dental/
4	exp economics, hospital/
5	Economics, Medical/
6	Economics, Nursing/
7	Economics, Pharmaceutical/
8	(economic$ or cost or costs or costly or costing or price or prices or pricing or pharmacoeconomic$).ti,ab.
9	(expenditure$ not energy).ti,ab.
10	value for money.ti,ab.
11	budget$.ti,ab.
12	or/1‐11
13	(energy or oxygen) adj cost).ti,ab.
14	(metabolic adj cost).ti,ab.
15	((energy or oxygen) adj expenditure).ti,ab.
16	or/13‐15
17	12 not 16
18	letter.pt.
19	editorial.pt.
20	historical article.pt.
21	or/18‐20
22	17 not 21
23	exp animals/ not humans/
24	22 not 23
25	bmj.jn.
26	"cochrane database of systematic reviews".jn.
27	health technology assessment winchester england.jn.
28	or/25‐27
29	24 not 28
30	limit 29 to yr="2014 ‐Current"