title: Response to letter.
authors.affiliation: Pediatrics, "Sapienza" University of Rome Rome, Italy.
authors.forename: Raffaella
authors.initials: R
authors.lastname: Nenna
authors.affiliation: Pediatrics, "Sapienza" University of Rome Rome, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Midulla
mesh_terms: D001988:Bronchiolitis / Q000188:drug therapy*; D005260:Female; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage*; D008297:Male; D012462:Saline Solution, Hypertonic / Q000008:administration & dosage*; D055675:Viscosupplements / Q000008:administration & dosage*
chemical_list: D012462:Saline Solution, Hypertonic; D055675:Viscosupplements; D006820:Hyaluronic Acid
keywords: bronchiolitis; clinical trials; pulmonology (general)