Murinello A, Bicho M, Estrela Inácio R, Loureiro MC. Mixed methemoglobinemia, congenital and acquired. RPMI [Internet]. 2001 Dec. 31 [cited 2025 Apr. 4];8(4):206-9. Available from: https://revista.spmi.pt/index.php/rpmi/article/view/2022