Mycobacterium tuberculosis Beijing in the State of Nuevo Leon, Mexico Nohemí Catana-Botello; Pola Becerril-Montes; Jorge Castro-Garza; Francisco González-Salazar; Horacio Almanza-Reyes; María De Los Ángeles Del Bosque-Moncayo; Alejandro Morales-Vargas; Víctor Manuel Velázquez-Moreno;

Clinical and epidemiological features of tuberculosis isolated from critically ill patients Joaquín Hurtado; Cecilia Coitinho; Nicolás Nin; María Buroni; Francisco Javier Hurtado; Carlos Robello; Gonzalo Greif;