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da Costa BR, Beckett B, Diaz A, Resta NM, Johnston BC, Egger M, Jüni P, Armijo-Olivo S.da Costa BR, et al. Among authors: beckett b.Syst Rev. 2017 Mar 3;6(1):44. doi: 10.1186/s13643-017-0441-7.Syst Rev. 2017.PMID: 28253938Free PMC article.Clinical Trial.
da Costa BR, Resta NM, Beckett B, Israel-Stahre N, Diaz A, Johnston BC, Egger M, Jüni P, Armijo-Olivo S.da Costa BR, et al. Among authors: beckett b.Syst Rev. 2014 Dec 13;3:144. doi: 10.1186/2046-4053-3-144.Syst Rev. 2014.PMID: 25495124Free PMC article.