Hartman M, Bolton E, Fehnel SE. Accounting for age differences on the Wisconsin Card Sorting Test: decreased working memory, not inflexibility. Psychol Aging. 2001 Sep 1;16(3):385-99.
Burke GL, Anthony MS, Vitolins M. Dietary soy protein and lipids: a strategy for primary prevention of cardiovascular disease? Current opinion in endocrinology diabetes and obesity. 1996 Dec;3(6):508-13.