APA (7th ed.) Citation

Levine, O. S., O'Brien, K. L., Knoll, M., Adegbola, R. A., Black, S., Cherian, T., . . . Cutts, F. (2006). Pneumococcal vaccination in developing countries. Lancet, 367(9526), 1880. https://doi.org/10.1016/S0140-6736(06)68703-5

Chicago Style (17th ed.) Citation

Levine, Orin S., et al. "Pneumococcal Vaccination in Developing Countries." Lancet 367, no. 9526 (2006): 1880. https://doi.org/10.1016/S0140-6736(06)68703-5.

MLA (9th ed.) Citation

Levine, Orin S., et al. "Pneumococcal Vaccination in Developing Countries." Lancet, vol. 367, no. 9526, 2006, p. 1880, https://doi.org/10.1016/S0140-6736(06)68703-5.