Table 1 Numbers of articles obtained using different search terms
From: MAPK1/ERK2 as novel target genes for pain in head and neck cancer patients
Search terms | # of articles by PubMed search | # of articles by initial screen | # of articles from references | # of articles included |
|---|---|---|---|---|
Cancer pain SNPs (SNP) | 74 | 20 | 14 | 34 |
Cancer pain genes (gene) | 1207 | 0 | 0 | 0 |
Cancer neuropathic pain SNPs (SNP) | 4 | 0 | 0 | 0 |
Cancer neuropathic pain genes (gene) | 78 | 2 | 0 | 2 |
Cancer chronic pain SNPs (SNP) | 12 | 0 | 0 | 0 |
Cancer chronic pain genes (gene) | 204 | 0 | 0 | 0 |
Total | 1579 | 22 | 14 | 36 |