title: Invited commentary.
authors.affiliation: Department of Surgery, Alpert Medical School of Brown University, Providence, RI, USA. jfeng@lifespan.org
authors.forename: Jun
authors.initials: J
authors.lastname: Feng
mesh_terms: D001026:Coronary Artery Bypass; D003329:Coronary Vasospasm / Q000209:etiology*; D004730:Endothelium, Vascular / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D017534:Radial Artery / Q000503:physiopathology*; D012501:Saphenous Vein / Q000503:physiopathology*; D014661:Vasoconstriction / Q000502:physiology*