Cross-sectional area variations of internal jugular veins during supine head rotation in multiple sclerosis patients with chronic cerebrospinal venous insufficiency: a prospective diagnostic controlled study with duplex ultrasound investigation.
Farina M, Novelli E, Pagani R
BMC Neurol. 2013 Nov 5; 13(1):162. Epub 2013 Nov 05. PMID: 24188184.Abstract