1. The Absence of an Apolipoprotein Epsilon4 Allele Is Associated with a More Aggressive Form of Alzheimer's Disease Stern, Yaakov; Brandt, Jason; Albert, Marilyn; Jacobs, Diane; Liu, Xinhua; Bell, Karen L.; Marder, Karen; Sano, Mary; Albert, Steven M.; Del Castillo-Castaneda, Caridad; Bylsma, Fred; Tycko, Benjamin; Mayeux, Richard Paul 1997 Articles NeurologyApolipoprotein EAlzheimer's diseasePsychiatry