Shaping anesthetic techniques to reduce post-operative delirium (SHARP) study: a protocol for a prospective pragmatic randomized controlled trial to evaluate spinal anesthesia with... oleh Charles H. Brown, Emily L. Jones, Charles Lin, Melody Esmaili, Yara Gorashi, Richard A. Skelton, Daniel Kaganov, Elizabeth A. Colantuoni, Lisa R. Yanek, Karin J. Neufeld, Vidyulata Kamath, Frederick E. Sieber, Clayton L. Dean, Charles C. Edwards, Charles W. Hogue