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Differences in patient characteristics and external validity of randomized clinical trials on pain management following total hip and knee arthroplasty: a systematic review.
Pedersen C, Troensegaard H, Laigaard J, Koyuncu S, Schrøder HM, Overgaard S, Mathiesen O, Karlsen APH. Pedersen C, et al. Among authors: karlsen aph. Reg Anesth Pain Med. 2020 Sep;45(9):709-715. doi: 10.1136/rapm-2020-101459. Epub 2020 Jul 28. Reg Anesth Pain Med. 2020. PMID: 32723841
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