Raj, P. H., C. Akanksha, L. Manoj, G. Ronak, and M. Sadik. “A Case of Severe Methemoglobinemia With Shock and High Saturation Gap Following Suicidal Ingestion of Sodium Nitrite-Saved by Oral Methylene Blue”. Toxicology International, vol. 22, no. 3, Dec. 2015, pp. 147-50, https://www.informaticsjournals.com/index.php/toxi/article/view/20526.