PT - JOURNAL ARTICLE AU - Ross Andrews, PhD MPH AU - Sarah A. Moberley, BN MPH TI - The controversy over the efficacy of pneumococcal vaccine AID - 10.1503/cmaj.081744 DP - 2009 Jan 06 TA - Canadian Medical Association Journal PG - 18--19 VI - 180 IP - 1 4099 - http://www.cmaj.ca/content/180/1/18.short 4100 - http://www.cmaj.ca/content/180/1/18.full SO - CMAJ2009 Jan 06; 180