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Table 1 Search strategy of Cochrane Library database

From: Gabapentin for phantom limb pain after amputation in pediatric oncology: a systematic review protocol

Number Search terms
1 MeSH descriptor: (neoplasms) explode all trees
2 MeSH descriptor: (pain) explode all trees
3 MeSH descriptor: (cancer pain) explode all trees
4 MeSH descriptor: (phantom limb) explode all trees
5 ((neoplasms*) or (cancer*) or (tumor*) or (phantom*) or (limb*) or (pain*) or (pain intensity*) or (neuropathic*) or (cancer pain*) or (chronic pain*)):ti, ab, kw
6 Or 1-5
7 MeSH descriptor: (gabapentin) explode all trees
8 ((gabapentin*) or (anti-epileptic drug*) or (anticonvulsant*) or (neurontin*) or (gralise*) or (GABA analogs*)):ti, ab, kw
9 Or 7-8
10 MeSH descriptor: (randomized controlled trials) explode all trees
11 MeSH descriptor: (case-control studies) explode all trees
12 ((random*) or (allocation*) or (placebo*) or (sham*) or (blind*) or (control trial*) or (case-control*) or (case control*) or (case-comparison*) or (clinical trial*) or (observational study*) or (study*) or (trial*)):ti, ab, kw
13 Or 10-12
14 6 and 9 and 13