Bigham, M., & Hoefer, M. (2001). Comparing Benefits and Risks of Immunization. Can J Public Health.
Citação norma ChicagoBigham, Mark, and Michael Hoefer. "Comparing Benefits and Risks of Immunization." Can J Public Health 2001.
Citação norma MLABigham, Mark, and Michael Hoefer. "Comparing Benefits and Risks of Immunization." Can J Public Health 2001.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.