Maria Landgraf, Ilka, Maria das Graças Adelino Alkmin, and Sônia França Correia Barbosa. “IgA1 Proteases - Occurrence in Meningitis Etiological Agents”. Instituto Adolfo Lutz Journal - RIAL 57, no. 2 (December 30, 1998): 27–30. Accessed December 14, 2025. https://periodicos.saude.sp.gov.br/RIAL/article/view/36633.