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APA Citation
Menzies, R., Stein, A., Booy, R., Van Buynder, P., Litt, J., & Cripps, A. (2021). the impact of the changing pneumococcal national immunisation program among older Australians. Vaccine, 39(4), 720–728. http://access.bl.uk/ark:/81055/vdc_100119754250.0x000047