title: Hoover sign.
authors.affiliation: Department of Respiratory and Critical Care Medicine, Schaffner Hospital, Lens, France.
authors.forename: Malcolm
authors.initials: M
authors.lastname: Lemyze
authors.forename: Frédéric
authors.initials: F
authors.lastname: Bart
mesh_terms: D000368:Aged; D003964:Diaphragm / Q000503:physiopathology; D006801:Humans; D001239:Inhalation; D008297:Male; D010808:Physical Examination; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography; D012272:Ribs / Q000503:physiopathology*