1. Acambis, Inc. (2007) ACAM2000 smallpox (vaccinia) vaccine, live package insert.
www.fda.gov/Cber/label/acam2000LB.pdf
. Accessed 15 Nov 2008
2. Ahlborg B, Linroth K, Nordgren B (1966) ECG-changes without subjective symptoms after smallpox vaccination of military personnel. Acta Med Scand Suppl 464:127–134
3. Allen A (2007) Vaccine: the controversial story of medicine’s greatest lifesaver. W. W. Norton & Company, New York
4. Arita I (1999) Standardization of smallpox vaccines and the eradication programme – a WHO perspective. Dev Biol Stand 100:31–37
5. Artenstein AW (2008) New generation smallpox vaccines: a review of preclinical and clinical data. Rev Med Virol 18(4):217–231