Streit, B ; Hanß, S ; Zhou, Y.. Ahmad N, Boutron I, Dechartres A, Durieux P, Ravaud P. Applicability and generalisability of the results of systematic reviews to public health practice and policy: a systematic review. Trials. 2010;11:20. DOI:10.1186/1745-6215-11-20.
,
2012
Zhou, Y ; Hanß, S ; Niepage, S. Esiqia technologies gmbh. Die Branchen-Lösungen Gesundheitswesen. http://www.esiqia.com/index.php?id=312. Accessed April 11, 2011..
,
2011