title: [Doppler sonographic diagnosis of extracranial occlusive disease. Validity of indirect, direct and combined procedures].
mesh_terms: D001783:Blood Flow Velocity; D002340:Carotid Artery Diseases / Q000175:diagnosis*; D003251:Constriction, Pathologic; D006801:Humans; D014463:Ultrasonography / Q000379:methods*; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis*
vernacular_title: Dopplersonographische Diagnostik der extrakraniellen Verschlusskrankheit. Validität indirekter, direkter und kombinierter Verfahren.