PT - JOURNAL ARTICLE ED - , TI - Modelling an influenza pandemic: a guide for the perplexed AID - 10.1503/cmaj.090885 DP - 2009 Jul 20 TA - Canadian Medical Association Journal 4099 - http://www.cmaj.ca/content/early/2009/07/20/cmaj.090885.short 4100 - http://www.cmaj.ca/content/early/2009/07/20/cmaj.090885.full