EXSS 61100: Research Methods

Example in SPORTDiscus
1.concussion or mild traumatic brain injury or mild tbi or mtbi or head injury
2. football or nfl 
3.cognit* or attention or focus* or concentration or memory
* Be sure to limit to Peer Review or Academic Journals in SPORTDiscus

Example in Medline

1.concussion or mild traumatic brain injury or mild tbi or mtbi or head injury
2. football or nfl 
3.cognit* or attention or focus* or concentration or memory

4. literature review or meta-analysis or systematic review

Don't Forget to Apply Filters:

Example in Google Scholar

You can search several EBSCO databases at once

1. soccer or football
2. overuse or "over use" or injur*
3. therap* or intervention* or treatment*
4. systematic review or meta analysis or randomized controlled trials or rtc or randomised control trials

Cochrane