Osterholm, MT; Kelley, NS; Sommer, A; Belongia, EA (janeiro de 2012). «Efficacy and effectiveness of influenza vaccines: a systematic review and meta-analysis.». The Lancet. Infectious Diseases. 12 (1): 36–44. PMID22032844. doi:10.1016/S1473-3099(11)70295-X
Demicheli, Vittorio; Jefferson, Tom; Di Pietrantonj, Carlo; Ferroni, Eliana; Thorning, Sarah; Thomas, Roger E.; Rivetti, Alessandro (1 de fevereiro de 2018). «Vaccines for preventing influenza in the elderly». The Cochrane Database of Systematic Reviews. 2: CD004876. ISSN1469-493X. PMID29388197. doi:10.1002/14651858.CD004876.pub4
Demicheli, Vittorio; Jefferson, Tom; Al-Ansary, Lubna A; Ferroni, Eliana; Rivetti, Alessandro; Di Pietrantonj, Carlo (2014). «Vaccines for preventing influenza in healthy adults». Cochrane Database of Systematic Reviews (3): CD001269. PMID24623315. doi:10.1002/14651858.CD001269.pub5
Osterholm, MT; Kelley, NS; Sommer, A; Belongia, EA (janeiro de 2012). «Efficacy and effectiveness of influenza vaccines: a systematic review and meta-analysis.». The Lancet. Infectious Diseases. 12 (1): 36–44. PMID22032844. doi:10.1016/S1473-3099(11)70295-X
Demicheli, Vittorio; Jefferson, Tom; Di Pietrantonj, Carlo; Ferroni, Eliana; Thorning, Sarah; Thomas, Roger E.; Rivetti, Alessandro (1 de fevereiro de 2018). «Vaccines for preventing influenza in the elderly». The Cochrane Database of Systematic Reviews. 2: CD004876. ISSN1469-493X. PMID29388197. doi:10.1002/14651858.CD004876.pub4
Demicheli, Vittorio; Jefferson, Tom; Al-Ansary, Lubna A; Ferroni, Eliana; Rivetti, Alessandro; Di Pietrantonj, Carlo (2014). «Vaccines for preventing influenza in healthy adults». Cochrane Database of Systematic Reviews (3): CD001269. PMID24623315. doi:10.1002/14651858.CD001269.pub5
Demicheli, Vittorio; Jefferson, Tom; Di Pietrantonj, Carlo; Ferroni, Eliana; Thorning, Sarah; Thomas, Roger E.; Rivetti, Alessandro (1 de fevereiro de 2018). «Vaccines for preventing influenza in the elderly». The Cochrane Database of Systematic Reviews. 2: CD004876. ISSN1469-493X. PMID29388197. doi:10.1002/14651858.CD004876.pub4