TY - JOUR T1 - Possible causes of cognitive decline JF - Canadian Medical Association Journal JO - CMAJ SP - 431 LP - 432 DO - 10.1503/cmaj.1041166 VL - 171 IS - 5 AU - Michael D. Hill AU - Jessica E. Simon Y1 - 2004/08/31 UR - http://www.cmaj.ca/content/171/5/431.abstract ER -