J Am Coll Nutr. 2003 Dec;22(6):494-501. The effect of flax seed cultivars with differing content of alpha-linolenic acid and lignans on responses to mental stress. Spence JD, Thornton T, Muir AD, Westcott ND. Stroke Prevention and Atherosclerosis Research Centre, Siebens-Drake/Robarts Research Institute, 1400 Western Road, London, Ontario N6G 2V2, Canada.

Arterioscler Thromb Vasc Biol. 2002 Aug 1;22(8):1316-22. Higher usual dietary intake of phytoestrogens is associated with lower aortic stiffness in postmenopausal women. van der Schouw YT, Pijpe A, Lebrun CE, Bots ML, Peeters PH, van Staveren WA, Lamberts SW, Grobbee DE. Julius Center for Health Sciences and Primary Care, University Medical Center, Utrecht, The Netherlands. 

Atherosclerosis. 2004 Apr;173(2):223-9. Flaxseed reduces plasma cholesterol and atherosclerotic lesion formation in ovariectomized Golden Syrian hamsters. Lucas EA, Lightfoot SA, Hammond LJ, Devareddy L, Khalil DA, Daggy BP, Smith BJ, Westcott N, Mocanu V, Soung do Y, Arjmandi BH. Department of Nutritional
Sciences, Oklahoma State University, 416 Human Environmental Sciences, Stillwater, OK 74078, USA.