1. History of Vaccine Development;Plotkin,2011
2. Montague MW. Lady Mary Wortley Montagu on Small Pox in Turkey [Letter] in Children and Youth in History. Item #157; Annotated by Payne L. Available from: https://chnm.gmu.edu/chy/primary-sources/157.
3. A History of Immunization;Parish,1965
4. An Inquiry into the Causes and Effects of the Variolae Vaccine;Jenner,1798
5. Edward Jenner's inquiry after 200 years;Baxby;BMJ,1999