Affiliation: | 1. Center for Disc Replacement at Texas Back Institute, 6020 W. Parker Rd. #200, Plano, TX 75093, USA;2. Texas Back Institute, 6020 W. Parker Rd. #200, Plano, TX 75093, USA;3. Texas Back Institute Research Foundation, 6020 W. Parker Rd. #200, Plano, TX 75093, USA |