#	Searches
1	exp pneumothorax/
2	(pneumothora* or "pneumo thora*").tw,kw.
3	PTX.tw,kw.
4	1 or 2 or 3
5	radiography/
6	thorax radiography/
7	radiograph*.tw,kw.
8	radiogram*.tw,kw.
9	radiology.tw,kw.
10	roentgen*.tw,kw.
11	"chest film".tw,kw.
12	CXR.tw,kw.
13	x‐ray*.tw,kw.
14	"x ray*".tw,kw.
15	xray.tw,kw.
16	5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15
17	echography/ or focused assessment with sonography for trauma/
18	exp ultrasound/
19	(Ultrasound* or "ultra sound*").tw,kw.
20	sonogra*.tw,kw.
21	(ultrasonogra* or "ultra sonogra*").tw,kw.
22	CUS.tw,kw.
23	ultrasonic.tw,kw.
24	echotomograph*.tw,kw.
25	echograph*.tw,kw.
26	17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 or 25
27	4 and 16 and 26
28	27 not (Animal/ not (Animal/ and Human/))