Effectiveness of pneumococcal conjugate 13-valent vaccine against severe pneumonia in Panama: a matched case-control study JacquelineLevy Z; Rodrigo DeAntonio; Xavier Sáez-Llorens;

Chikungunya fever in hospitalized children and adolescents: clinical and epidemiological aspects in a region of northeastern Brazil Wládia Gislaynne de Sousa Tavares; Roberio Dias Leite; Denise Maria Christofolini;

Direct oral provocation test with beta-lactams in Brazilian children and adolescents Nathália Mota Gomes de Almeida; Mara Morelo Rocha Felix; Maria Inês Perelló Lopes Ferreira; Fábio Chigres Kuschnir;