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Table 2 Search strategy on MEDLINE (OVID interface)

From: Neuromuscular adaptations to experimentally induced pain in the lumbar region: protocol for a systematic review and meta-analysis

1. Experimental pain ((Experiment* adj5 pain) or (experimentally-induced adj4 pain) or (pain-induced or “experimental induced” or “experimentally induced”) or (induced adj3 pain) or “induced LBP” or (noxious adj3 stimul*) or (nociceptive adj3 stimul*) or (pain* adj3 stimul*)).mp
2. Pain model (((“hypertonic saline” or capsaicin or glutamate or “laser evoked potential” or “laser evoked potentials” or “nerve growth factor”) and pain) or (electric* adj2 pain*) or (electric* adj2 stimul*) or (mechanic* adj2 pain*) or (mechanic* adj2 stimul*) or (thermal* adj2 pain*) or (thermal* adj2 stimul*) or (chemical* adj2 pain*) or (chemical* adj2 stimul*) or (cutaneous adj2 pain*) or (cutaneous adj2 stimul*)).mp or Saline Solution, Hypertonic/ or Electric Stimulation/
3. Body region stimulated Back Pain/ or (“back pain” or “back ache” or backache*).mp or exp Low Back Pain/ or (“low back pain” or “lower back pain” or lumbago or LBP or “lumbar pain” or “lumbar spine” or “low back” or “lower back”).mp
4. 1 OR 2
5. 3 AND 4