Bibby, J., Saidu, Y., Umesi, A., Moneke-Anyanwoke, N., Bashorun, A. O., Hydara, M. B., Adigweme, I., Adetifa, J. U., Okoye, M., Roberts, E., Clemens, R., Bandyopadhyay, A. S., Muhammad, A. K., Mulwa, S., Royals, M., Jarrahian, C., Jeffries, D., Kampmann, B., & Clarke, E. (2017). the Immunogenicity of Fractional Intradermal Doses of the Inactivated Poliovirus Vaccine Is Associated With the Size of the Intradermal Fluid Bleb. Clinical infectious diseases, 65, 851–854. http://access.bl.uk/ark:/81055/vdc_100126061876.0x000044