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A Phase II trial of autologous transplantation of bone marrow stem cells for critical limb ischemia: Results of the Naples and Pietra Ligure Evaluation of Stem Cells study. <i>Stem Cells Transl Med<\/i> 2012; 1: 572\u2013578.","DOI":"10.5966\/sctm.2012-0021"},{"key":"47","doi-asserted-by":"crossref","unstructured":"47. Pignon B, Sevestre MA, Kanagaratnam L, Pernod G, Stephan D, Emmerich J, et al. 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