PT - JOURNAL ARTICLE AU - Tom Koch, PhD TI - Were polio to return, today… AID - 10.1503/cmaj.080449 DP - 2008 Apr 22 TA - Canadian Medical Association Journal PG - 1244--1244 VI - 178 IP - 9 4099 - http://www.cmaj.ca/content/178/9/1244.short 4100 - http://www.cmaj.ca/content/178/9/1244.full SO - CMAJ2008 Apr 22; 178