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Schneider A, Großmann N, Linde K; DFG Network Clincial Trials in General Practice.Schneider A, et al.BMC Fam Pract. 2012 Jun 15;13:58. doi: 10.1186/1471-2296-13-58.BMC Fam Pract. 2012.PMID: 22702476Free PMC article.
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