1. Atlantic Food and Horticulture Research Centre, Agriculture and Agri-Food Canada, 32 Main Street, Kentville, Nova Scotia, Canada B4N 1J5
2. Department of Molecular and Experimental Medicine, The Scripps Institute, 10550 Torrey Pines Road, La Jolla, California 92037
3. Antioxidants Research Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, 711 Washington Street, Boston, Massachusetts 02111-1524
4. Department of Ophthalmology and Visual Sciences, Dalhousie University and IWK Health Center, 5850 University Avenue, Halifax, Nova Scotia, Canada B3K 6R8