Yüksel D, Senbil N, Yilmaz D, Yarali N, Gürer YKY. A rare cause of mental motor retardation: recessive congenital methemoglobinemia type II. Turk J Pediatr. 2009;51(2):187-189. Accessed March 26, 2026. https://turkjpediatr.org/article/view/2285