RT Journal Article SR Electronic T1 Alzheimer disease JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP e21 OP e21 DO 10.1212/01.wnl.0000343818.11392.d9 VO 72 IS 4 A1 Welsh-Bohmer, Kathleen A. A1 White, Charles L. YR 2009 UL http://n.neurology.org/content/72/4/e21.abstract AB