title: Primary Raynaud's is a disease or a disorder: it is not merely a trait.
authors.forename: J J
authors.initials: JJ
authors.lastname: Belch
authors.forename: F
authors.initials: F
authors.lastname: Khan
mesh_terms: D006801:Humans; D011928:Raynaud Disease / Q000473:pathology* / Q000503:physiopathology*; D013035:Spasm; D013564:Sympathetic Nervous System / Q000473:pathology / Q000503:physiopathology; D009626:Terminology as Topic; D014652:Vascular Diseases / Q000473:pathology / Q000503:physiopathology; D014661:Vasoconstriction