@article {Collier, author = {Roger Collier}, title = {Flu pandemic prompts other vaccination delays}, year = {2009}, doi = {10.1503/cmaj.109-3043}, publisher = {CMAJ}, issn = {0820-3946}, URL = {https://www.cmaj.ca/content/early/2009/09/21/cmaj.109-3043}, eprint = {https://www.cmaj.ca/content/early/2009/09/21/cmaj.109-3043.full.pdf}, journal = {CMAJ} }