Aortic BodiesParaganglia, NonchromaffinCarotid BodyCarotid ArteriesCarotid Body TumorCarotid StenosisChemoreceptor CellsCarotid Artery DiseasesParaganglioma, Extra-AdrenalEndarterectomy, CarotidCarotid Artery, InternalCarotid SinusPeripheral Nervous System NeoplasmsCarotid Artery, CommonHypercapniaCarotid Artery, ExternalReflexCarotid Artery ThrombosisCarotid Artery InjuriesAnoxiaDogsSodium CyanideCarotid Intima-Media Thickness