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Table 1 PubMed search strategy (conducted on June 9, 2020)

From: Local infiltration of tramadol as an effective strategy to reduce post-operative pain: a systematic review protocol and meta-analysis

Search Query Records retrieved
#1 ((“anesthetics, local”[Pharmacological Action] OR “anesthetics, local”[MeSH Terms] OR (“anesthetics”[All Fields] AND “local”[All Fields]) OR “local anesthetics”[All Fields] OR (“local”[All Fields] AND “anesthetic”[All Fields]) OR “local anesthetic”[All Fields] OR “anesthesia, local”[MeSH Terms] OR (“anesthesia”[All Fields] AND “local”[All Fields]) OR “local anesthesia”[All Fields] OR (“local”[All Fields] AND “anesthetic”[All Fields])) AND (“tramadol”[MeSH Terms] OR “tramadol”[All Fields])) OR (((“anesthetics, local”[Pharmacological Action] OR “anesthetics, local”[MeSH Terms] OR (“anesthetics”[All Fields] AND “local”[All Fields]) OR “local anesthetics”[All Fields] OR (“local”[All Fields] AND “anesthetic”[All Fields]) OR “local anesthetic”[All Fields] OR “anesthesia, local”[MeSH Terms] OR (“anesthesia”[All Fields] AND “local”[All Fields]) OR “local anesthesia”[All Fields] OR (“local”[All Fields] AND “anesthetic”[All Fields])) AND (“pain, postoperative”[MeSH Terms] OR (“pain”[All Fields] AND “postoperative”[All Fields]) OR “postoperative pain”[All Fields] OR (“postoperative”[All Fields] AND “pain”[All Fields]))) AND (“tramadol”[MeSH Terms] OR “tramadol”[All Fields])) 556