Yousefifard, Mahmoud, et al. “Ultra-Early Spinal Decompression Surgery Can Improve Neurological Outcome of Complete Cervical Spinal Cord Injury; A Systematic Review and Meta-Analysis”. Archives of Academic Emergency Medicine, vol. 10, no. 1, Jan. 2022, p. e11, doi:10.22037/aaem.v10i1.1471.