Probiotics for the treatment of upper and lower respiratory-tract infections in children: systematic review based on randomized clinical trials Georgia Véras de Araujo, Mário Henriques de Oliveira Junior, Décio Medeiros Peixoto, Emanuel Sávio Cavalcanti Sarinho

Exacerbation of asthma and airway infection: is the virus the villain? Lusmaia D.C. Costa, Paulo Sucasas Costa, Paulo A.M. Camargos

Respiratory syncytial virus infection as a cause of hospitalization in population under 1 year in Colombia Juan Gabriel Piñeros, Hernando Baquero, Jaime Bastidas, Jorge García, Oscar Ovalle, Carlos M. Patiño, Juan C. Restrepo