Affiliation: | 1.Department of Orthopedics, Center for Orthopedic Research and Education, The CORE Institute, 18444 N. 25th Ave, Phoenix, AZ, 85023, USA ;2.Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA ;3.Greater Pittsburgh Orthopaedic Associates, Pittsburgh, PA, USA ;4.Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA ;5.Duke University Medical Center, Durham, NC, USA ;6.Department of Orthopaedic Surgery, Virginia Commonwealth University Medical Center, Richmond, VA, USA ; |