Effect of Systemic Piracetam Treatment on Flap Survival and Vascular Endothelial Growth Factor Expression after Ischemia-Reperfusion Injury - Tuncer, Serhan; Ayhan, Suhan; Findikcioglu, Kemal; Ergun, Hakan; Tuncer, Ilhan (Journal of Reconstructive Microsurgery, 2011)