Shariff, M., A. Abdallah, A. Salam, and S. Fathima. “Subacute Combined Degeneration of the Spinal Cord Secondary to Nitrous Oxide-Induced B12 Deficiency”. European Journal of Case Reports in Internal Medicine, vol. 10, no. 3, Mar. 2023, doi:10.12890/2023_003765.