Correlation of Clinical and Ultrasound Variables to Vulnerability of Carotid Plaques in Patients Submitted to Carotid Endarterectomy. - Mazzaccaro D; Ambrogi F; Milani V; Modafferi A; Marrocco-Trischitta MM; Malacrida G; Righini P; Nano G (Annals of vascular surgery, 2020)