title: An unusual cause of tachypnea.
authors.affiliation: Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, PA 15213, USA.
authors.forename: A
authors.initials: A
authors.lastname: Faro
authors.forename: E
authors.initials: E
authors.lastname: Massella
authors.forename: D M
authors.initials: DM
authors.lastname: Orenstein
mesh_terms: D002648:Child; D003248:Constipation / Q000150:complications*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D012120:Respiration Disorders / Q000209:etiology*; D012129:Respiratory Function Tests