title: Roundworm infestation.
authors.forename: D
authors.initials: D
authors.lastname: Pérez-Loría
authors.forename: R
authors.initials: R
authors.lastname: Sanchez-Elias
mesh_terms: D000402:Airway Obstruction / Q000209:etiology; D001196:Ascariasis / Q000150:complications / Q000469:parasitology*; D002675:Child, Preschool; D004947:Esophagus / Q000469:parasitology; D006801:Humans; D007830:Larynx / Q000469:parasitology; D008297:Male