Effect of tramadol as an adjuvant to local anesthetics for brachial plexus block: A systematic review and meta-analysis

• Hye Won Shin ,

  Roles Conceptualization, Data curation, Methodology, Software, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: drhwshin@naver.com

  Affiliation Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea

  http://orcid.org/0000-0003-3770-6675

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• Bum Jun Ju,

  Roles Conceptualization, Data curation, Formal analysis, Methodology

  Affiliation Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea

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• Yoo Kyung Jang,

  Roles Conceptualization, Data curation, Investigation, Methodology

  Affiliation Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea

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• Hae Seun You,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation

  Affiliation Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea

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• Hyun Kang,

  Roles Conceptualization, Software, Writing – original draft

  Affiliation Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea

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• Ji Yong Park

  Roles Conceptualization, Formal analysis, Methodology, Validation, Writing – original draft

  Affiliation Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Republic of Korea

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