title: Changes in air humidity and the incidence of acute laryngotracheitis.
authors: I
authors: I
authors: Grotto
authors: E
authors: E
authors: Shemesh
authors: Marc
authors: M
authors: Mimoui
mesh_terms: D002648:Child; D003440:Croup / Q000209:etiology*; D006801:Humans; D006813:Humidity; D015994:Incidence; D011446:Prospective Studies