Ndiritu, M., Cowgill, K., Ismail, A., Chiphatsi, S., Kamau, T., Fegan, G., . . . Scott, J. (2006). Immunization coverage and risk factors for failure to immunize within the Expanded Programme on Immunization in Kenya after introduction of new Haemophilus influenzae type b and hepatitis b virus antigens. BioMed Central.
Chicago-referens (17:e uppl.)Ndiritu, M., K. Cowgill, A. Ismail, S. Chiphatsi, T. Kamau, G. Fegan, DR Feikin, C. Newton, och J. Scott. Immunization Coverage and Risk Factors for Failure to Immunize Within the Expanded Programme on Immunization in Kenya After Introduction of New Haemophilus Influenzae Type B and Hepatitis B Virus Antigens. BioMed Central, 2006.
MLA-referens (9:e uppl.)Ndiritu, M., et al. Immunization Coverage and Risk Factors for Failure to Immunize Within the Expanded Programme on Immunization in Kenya After Introduction of New Haemophilus Influenzae Type B and Hepatitis B Virus Antigens. BioMed Central, 2006.