Searching for the right timing of surgical delay: angiogenesis, vascular endothelial growth factor and perfusion changes in a skin-flap model - Holzbach, T; Neshkova, I; Vlaskou, D; Konerding, MA; Gansbacher, B; Biemer, E; Giunta, RE (J Plast Reconstr Aesthet Surg, 2009)