title: Images in clinical medicine. The "thumb sign" in Marfan's syndrome.
authors.affiliation: Boston University School of Medicine, MA 02118, USA.
authors.forename: R H
authors.initials: RH
authors.lastname: Falk
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008382:Marfan Syndrome / Q000175:diagnosis*; D013933:Thumb