title: Anterior tracheal indentation in infancy and early childhood: normal or abnormal?
mesh_terms: D000367:Age Factors; D000792:Angiography; D016122:Brachiocephalic Trunk / Q000000981:diagnostic imaging; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D014132:Trachea / Q000000981:diagnostic imaging*; D014135:Tracheal Stenosis / Q000000981:diagnostic imaging* / Q000209:etiology