Cite
MLA Citation
Lili Huang et al.. “A phase III clinical trial to evaluate the safety and immunogenicity of 23-valent pneumococcal polysaccharide vaccine (PPV23) in healthy children, adults, and elderly.” Human vaccines & immunotherapeutics, vol. 15, no. 1, 2019, pp. 249–255. http://access.bl.uk/ark:/81055/vdc_100077376795.0x000007