title: Congenital absence of the internal carotid artery: an unusual cause of asymmetrical diabetic retinopathy.
authors.affiliation: Department of Ophthalmology, Stanley Eye Unit, Abergele, UK.
authors.forename: Tafadzwa
authors.initials: T
authors.lastname: Young-Zvandasara
authors.forename: Chong Sum
authors.initials: CS
authors.lastname: Ng
mesh_terms: D000368:Aged; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000503:physiopathology; D003097:Collateral Circulation; D003930:Diabetic Retinopathy / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D006439:Hemodynamics; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D012307:Risk Factors; D054079:Vascular Malformations / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology