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Table 1 Example of search strategy—MEDLINE

From: Systematic review of depression in mild traumatic brain injury: study protocol

Term number

Search terms

Results

1

exp brain injuries/

 

2

craniocerebral trauma/

 

3

exp head injuries, closed/

 

4

exp skull fractures/

 

5

(mild traumatic brain injura or traumatic brain injura or mtbi or tbi).ti,ab

 

6

(concussa or postconcussa or post-concussa).ti,ab

 

7

(mild head injura or minor head injura or minor brain injura).ti,ab

 

8

or/1-7

95,069

9

depression/

 

10

exp depressive disorder/

 

11

depressia.ti,ab

 

12

dysthyma.ti,ab

 

13

or/9-12

313,682

14

and/8,13

2182

15

exp animals/ not humans/

 

16

14 not 15

1982

17

limit 16 to (english or french)

1819

  1. aused to denote wildcard