Epley, R. J., Addis, P. B., & Warthesen, J. J., Nitrite in MeatArxivləşdirilib 2017-08-17 at the Wayback Machine // conservancy.umn.edu, 1992 «The fatal dose of sodium nitrite is in the range of 22 to 23 milligrams per kilogram of body weight»
Epley, R. J., Addis, P. B., & Warthesen, J. J., Nitrite in MeatArxivləşdirilib 2017-08-17 at the Wayback Machine // conservancy.umn.edu, 1992 «The fatal dose of sodium nitrite is in the range of 22 to 23 milligrams per kilogram of body weight»