1. Methemoglobinemia associated with pyridium administration; report of a case;Crawford, S.E.; HE, Jr, Moon; Panos, T.C.; Hooks, C.A.;JAMA,1951
2. Methemoglobinemia and Heinz body hemolytic anemia due to phenazopyridine hydrochloride;Greenberg, M.S.; Wong, H.;N EnglJ Med,1964
3. Methemoglobinemia provoked by malarial chemoprophylaxis in Vietnam;Cohen, R.J.; Sachs, JR, Wicker; DJ, Conrad; M.E.;N EnglJ Med,1968
4. Methemoglobinemia from sniffing butyl nitrite;Horne, M.K.; Waterman, M.R.; Simon, L.M.; Garriott, J.C.; Foerster, E.H.;Ann Intern Med,1979
5. A simple method for the detection of unstable haemoglobins;Carrell, R.W.; Kay, R.;Br J Haematol,1972