TY - JOUR T1 - Why collect individual-level vaccination data? JF - Canadian Medical Association Journal JO - CMAJ SP - 273 LP - 275 DO - 10.1503/cmaj.091515 VL - 182 IS - 3 AU - Writing team for the Public Health Agency of Canada/Canadian Institutes of Health Research Influenza Research Network Vaccine Coverage Theme Group Y1 - 2010/02/23 UR - http://www.cmaj.ca/content/182/3/273.abstract ER -