PT - JOURNAL ARTICLE AU - Brad Mackay TI - Walkerton, 2 years later: “Memory fades very quickly” DP - 2002 May 14 TA - Canadian Medical Association Journal PG - 1326--1326 VI - 166 IP - 10 4099 - http://www.cmaj.ca/content/166/10/1326.1.short 4100 - http://www.cmaj.ca/content/166/10/1326.1.full SO - CMAJ2002 May 14; 166