title: Migraine is a marker for systemic disease.
authors.affiliation: Neuroophthalmology Clinic, AG Eye Hospital, Trichy, Tamil Nadu, India.
authors.forename: Natarajapillai
authors.initials: N
authors.lastname: Venugopal
authors.forename: M R
authors.initials: MR
authors.lastname: Sriram Gopal
mesh_terms: D005260:Female; D006801:Humans; D020138:Hyperhomocysteinemia / Q000208:ethnology*; D008297:Male; D015356:Retinal Artery Occlusion / Q000208:ethnology*