One cross-sectional investigation revealed that non-vaccine serotypes of Streptococcus pneumoniae could be identified more frequently in elderly Chinese people.

MLA

Du, Qian-Qian, et al. “One Cross-Sectional Investigation Revealed That Non-Vaccine Serotypes of Streptococcus Pneumoniae Could Be Identified More Frequently in Elderly Chinese People.” Vaccine, vol. 39, no. 24, June 2021, pp. 3304–09. EBSCOhost, https://doi.org/10.1016/j.vaccine.2021.02.053.

APA

Du, Q.-Q., Zeng, H.-L., Yuan, L., Tang, P., Gao, W., Xu, J.-J., Shi, W., Leng, T., Hu, K.-X., & Yao, K.-H. (2021). One cross-sectional investigation revealed that non-vaccine serotypes of Streptococcus pneumoniae could be identified more frequently in elderly Chinese people. Vaccine, 39(24), 3304–3309. https://doi.org/10.1016/j.vaccine.2021.02.053

Chicago

Du, Qian-Qian, Hai-Lin Zeng, Lin Yuan, Ping Tang, Wei Gao, Jiao-Jiao Xu, Wei Shi, Tian Leng, Kuan-Xiu Hu, and Kai-Hu Yao. 2021. “One Cross-Sectional Investigation Revealed That Non-Vaccine Serotypes of Streptococcus Pneumoniae Could Be Identified More Frequently in Elderly Chinese People.” Vaccine 39 (24): 3304–9. doi:10.1016/j.vaccine.2021.02.053.