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Portalupi S, von Elm E, Schmucker C, Lang B, Motschall E, Schwarzer G, Gross IT, Scherer RW, Bassler D, Meerpohl JJ; OPEN Consortium.Portalupi S, et al. Among authors: schmucker c.Syst Rev. 2013 Jan 9;2:2. doi: 10.1186/2046-4053-2-2.Syst Rev. 2013.PMID: 23302739Free PMC article.
Schmucker C, Bluemle A, Briel M, Portalupi S, Lang B, Motschall E, Schwarzer G, Bassler D, Mueller KF, von Elm E, Meerpohl JJ; OPEN Consortium.Schmucker C, et al.Syst Rev. 2013 May 2;2:24. doi: 10.1186/2046-4053-2-24.Syst Rev. 2013.PMID: 23634657Free PMC article.
Meerpohl JJ, Schell LK, Bassler D, Gallus S, Kleijnen J, Kulig M, La Vecchia C, Marušić A, Ravaud P, Reis A, Schmucker C, Strech D, Urrútia G, Wager E, Antes G; OPEN project consortium.Meerpohl JJ, et al. Among authors: schmucker c.BMJ Open. 2015 May 5;5(5):e006666. doi: 10.1136/bmjopen-2014-006666.BMJ Open. 2015.PMID: 25943371Free PMC article.
Bassler D, Mueller KF, Briel M, Kleijnen J, Marusic A, Wager E, Antes G, von Elm E, Altman DG, Meerpohl JJ; OPEN Consortium.Bassler D, et al.BMJ Open. 2016 Jan 21;6(1):e010024. doi: 10.1136/bmjopen-2015-010024.BMJ Open. 2016.PMID: 26801469Free PMC article.Review.
Schmucker CM, Blümle A, Schell LK, Schwarzer G, Oeller P, Cabrera L, von Elm E, Briel M, Meerpohl JJ; OPEN consortium.Schmucker CM, et al.PLoS One. 2017 Apr 25;12(4):e0176210. doi: 10.1371/journal.pone.0176210. eCollection 2017.PLoS One. 2017.PMID: 28441452Free PMC article.Review.