Guidelines for the ultrasound assessment of endothelial-dependent flow-mediated vasodilation of the brachial artery: a report of the International Brachial Artery Reactivity Task Force. - Corretti,MC.; Anderson,TJ.; Benjamin,EJ.; Celermajer,D.; Charbonneau,F.; Creager,MA. (J Am Coll Cardiol, 2002)