RT Journal Article SR Electronic T1 Possible causes of cognitive decline JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 430 OP 431 DO 10.1503/cmaj.1040802 VO 171 IS 5 A1 Graveline, Duane E. YR 2004 UL http://www.cmaj.ca/content/171/5/430.2.abstract