PT - JOURNAL ARTICLE AU - Arlene King TI - Ontario immunization rate for polio AID - 10.1503/cmaj.110-2094 DP - 2010 Sep 07 TA - Canadian Medical Association Journal PG - 1331--1332 VI - 182 IP - 12 4099 - http://www.cmaj.ca/content/182/12/1331.3.short 4100 - http://www.cmaj.ca/content/182/12/1331.3.full SO - CMAJ2010 Sep 07; 182