Retraction: Ashour, M., and Helal, A. (2012). “Response of Axially Loaded Piles in Sands with and without Seismically Induced Porewater Pressures.” Int. J. Geomech. , 10.1061/(ASCE)GM.1943-5622.0000273 (Dec. 1, 2012) - Retracted Article | RetractBase