APA (7th ed.) Citation

DM, M. (2006). Pneumococcal vaccine -- direct and indirect ('herd') effects. New England Journal of Medicine, 354(14), 1522.

Chicago Style (17th ed.) Citation

DM, Musher. "Pneumococcal Vaccine -- Direct and Indirect ('herd') Effects." New England Journal of Medicine 354, no. 14 (2006): 1522.

MLA (9th ed.) Citation

DM, Musher. "Pneumococcal Vaccine -- Direct and Indirect ('herd') Effects." New England Journal of Medicine, vol. 354, no. 14, 2006, p. 1522.