Comparison of the effectiveness of gene therapy with vascular endothelial growth factor or shock wave therapy to reduce ischemic necrosis in an epigastric skin flap model in rats - Meirer,R.; Huemer,G.M.; Oehlbauer,M.; Wanner,S.; Piza-Katzer,H.; Kamelger,F.S. (J Plast Reconstr Aesthet Surg, 2007)