Byington RP, Furberg CD, Herrington DM, Herd JA, Hunninghake D, Lowery M, Riley W, Craven T, Chaput L, Ireland CC, Applegate WB. Effect of estrogen plus progestin on progression of carotid atherosclerosis in postmenopausal women with heart disease: HERS B-mode substudy. Arterioscler Thromb Vasc Biol. 2002 Oct 01; 22(10):1692-7.