PT - JOURNAL ARTICLE AU - Paul Gessell TI - Elusive to the end AID - 10.1503/cmaj.121761 DP - 2013 Jan 08 TA - Canadian Medical Association Journal PG - E81--E82 VI - 185 IP - 1 4099 - http://www.cmaj.ca/content/185/1/E81.short 4100 - http://www.cmaj.ca/content/185/1/E81.full SO - CMAJ2013 Jan 08; 185