Placebo-controlled graded oral penicillin challenge in low-risk patients living with HIV without prior skin testing. Revista Alergia México, [S. l.], v. 73, n. 1, p. 9–16, 2026. DOI: 10.29262/ram.v73i1.1546. Disponível em: https://www.revistaalergia.mx/ojs/index.php/ram/article/view/1546. Acesso em: 24 sep. 2026.