#	Searches	Results
1	posttraumatic stress disorder/	48854
2	"trauma and stressor related disorders"/	34962
3	combat disorders/	26663
4	psychological trauma/	5351
5	stress disorders, post‐traumatic/	16743
6	stress disorders, traumatic, acute/	751
7	(PTSD or ((posttrauma* or post‐trauma* or post trauma*) adj3 (stress* or disorder* or psych* or symptom?)) or acute stress disorder* or combat disorder* or war neuros*).ti,ab,kw.	39945
8	(((acute or traumatic) adj stress*) and (expos* or psyc*)).ti,ab,kw.	15122
9	(traumati#ed adj (victim? or survivor?)).ti,ab,kw.	51
10	(trauma* adj2 (event? or memor* or flashback* or nightmare?)).ti,ab,kw.	10514
11	(EMDR or (eye movement desensiti#ation and reprocessing)).ti,kw.	527
12	((trauma* or posttrauma* or post‐trauma* or victim* or survivor?) and (exposure adj3 (therap* or psychotherap* or training or counsel*))).ti,ab,kw.	1096
13	(critical incident adj (stress or debrief* or de‐brief*)).ti,ab,kw.	275
14	(debriefing or de‐briefing).ti,ab,kw.	4133
15	(crisis intervention? or CISD).ti,ab,kw.	2273
16	((stress or group? or psychological or crisis) adj3 (debrief* or de‐brief*)).ti,ab,kw.	602
17	(trauma* adj2 (event? or memor* or flashback* or nightmare?)).ti,ab,kw.	10514
18	1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17	74063
19	crossover‐procedure/ or double‐blind procedure/ or randomized controlled trial/ or single‐blind procedure/ or (random* or factorial* or crossover* or cross over* or placebo* or (doubl* adj blind*) or (singl* adj blind*) or assign* or allocat* or volunteer*).tw.	1970074
20	18 and 19	7601
21	(2014* or 2015* or 2016* or 2017* or 2018*).yr,dc.	7084132
22	20 and 21	3319