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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.