@article {Andrews18, author = {Ross Andrews, PhD MPH and Sarah A. Moberley, BN MPH}, title = {The controversy over the efficacy of pneumococcal vaccine}, volume = {180}, number = {1}, pages = {18--19}, year = {2009}, doi = {10.1503/cmaj.081744}, publisher = {CMAJ}, issn = {0820-3946}, URL = {https://www.cmaj.ca/content/180/1/18}, eprint = {https://www.cmaj.ca/content/180/1/18.full.pdf}, journal = {CMAJ} }