TY - JOUR T1 - Calgary seeks help to identify <em>E. coli</em> source JF - Canadian Medical Association Journal JO - CMAJ SP - 560 LP - 561 DO - 10.1503/cmaj.071172 VL - 177 IS - 6 AU - Laura Eggertson Y1 - 2007/09/11 UR - http://www.cmaj.ca/content/177/6/560.2.abstract ER -