| Date | January 1, 1990, to February 16, 2014 | February 16, 2014, to May 15, 2014 | May 15, 2014, to May 19, 2015 | Resources | Keywords | Total | Abs | Art | Total | Abs | Art | Total | Abs | Art |
| PubMed | Concussion, Neck | 180 | 12 | 8 | 10 | 0 | 0 | 21 | 5 | 1 | PubMed | TBI, Neck, Treatment | 56 | 0 | 0 | 0 | 0 | 0 | 7 | 2 | 1 | PubMed | TBI, Cervical | 83 | 0 | 0 | 33 | 0 | 0 | 17 | 0 | 0 | PubMed | Concussion, Chiropractic | 12 | 4 | 1 | 2 | 0 | 0 | 2 | 0 | 0 | PubMed | Concussion, Physiotherapy | 53 | 3 | 2 | 3 | 0 | 0 | 12 | 2 | 1 | PubMed | Concussion, Physical Therapy | — | — | — | 138 | 4 | 1 | 38 | 6 | 1 | PubMed | Concussion, Athletic Training, Cervical | 30 | 2 | 2 | 0 | 0 | 0 | 6 | 1 | 0 | ICL | Concussion | 32 | 2 | 2 | 0 | 0 | 0 | 4 | 1 | 1 | SportDiscus | Concussion, Neck | 144 | 0 | 0 | 7 | 0 | 0 | 10 | 4 | 1 | SportDiscus | TBI, Neck, Treatment | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | SportDiscus | Concussion, Neck, Treatment | 15 | 1 | 1 | 4 | 1 | 0 | 3 | 1 | 1 | SportDiscus | Concussion, Cervical | 65 | 1 | 1 | 3 | 0 | 0 | 3 | 2 | 1 | SportDiscus | Concussion, Chiropractic | 9 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | SportDiscus | Concussion, Physiotherapy | 34 | 2 | 2 | 0 | 0 | 0 | 7 | 2 | 1 | SportDiscus | Concussion, Athletic Training, Cervical | 13 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | CINAHL | Concussion, Manipulation | 3 | 3 | 2 | 0 | 0 | 0 | 2 | 1 | 1 | CINAHL | Concussion, Guideline | 19 | 0 | 0 | 1 | 0 | 0 | 7 | 0 | 0 | Cochrane | Concussion | 4 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | PEDro | Concussion, Physical Therapy | 2285 | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | PEDro | mTBI, Physical Therapy | 215 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | PEDro | mTBI, Manual Therapy | 99 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | PEDro | Concussion, Manual Therapy | 1132 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | PEDro | Concussion, Chiropractic | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | | 4510 | 48 | 31 | 201 | 5 | 1 | 143 | 29 | 11 |
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