Silver Book Fact
In 2011, an estimated 5.4 million Americans have Alzheimer’s disease.
Alzheimer's Association. 2011 Alzheimer’s Disease Facts and Figures. Alzheimers Dement. 2011; 7(2): 208-44. http://www.alzheimersanddementia.com/article/S1552-5260(11)00036-7/fulltext