Menson, E. N.; Mellado, M. J.; Bamford, A.; Castelli, G.; Duiculescu, D.; Marczyńska, M.; Navarro, M. L.; Scherpbier, H. J.; Heath, P. T. (2012). “Guidance on vaccination of HIV-infected children in Europe”. HIV Medicine. 13 (6): 333–336, e1–336. doi:10.1111/j.1468-1293.2011.00982.x. PMID22296225.
Garnett, G. P. (2005). “Role of Herd Immunity in Determining the Effect of Vaccines against Sexually Transmitted Disease”. The Journal of Infectious Diseases. 191: S97–106. doi:10.1086/425271. PMID15627236.
Menson, E. N.; Mellado, M. J.; Bamford, A.; Castelli, G.; Duiculescu, D.; Marczyńska, M.; Navarro, M. L.; Scherpbier, H. J.; Heath, P. T. (2012). “Guidance on vaccination of HIV-infected children in Europe”. HIV Medicine. 13 (6): 333–336, e1–336. doi:10.1111/j.1468-1293.2011.00982.x. PMID22296225.
Garnett, G. P. (2005). “Role of Herd Immunity in Determining the Effect of Vaccines against Sexually Transmitted Disease”. The Journal of Infectious Diseases. 191: S97–106. doi:10.1086/425271. PMID15627236.