Clinical and Epidemiological Characteristics of Pediatric Pertussis Cases in a specialized hospital in Mexico - Itzel Stella Pérez Campos; Ricardo Gil Guevara; Pedro Arturo Mejía Rosales; Ana Estela Gamiño Arroyo; Ana Carmen Guerrero Diaz; Fernando Ortega Ríosvelasco (Journal of the Pediatric Infectious Diseases Society, 2026)