APA (7th ed.) Citation

JB, S., JM, K., D, K., J, J., UN, D., MM, M., & MF, J. (2002). Nutrition, physical activity, and obesity. Lancet, 360(9341), 1249. https://doi.org/10.1016/s0140-6736(02)11249-9

Chicago Style (17th ed.) Citation

JB, Summers, Kaminski JM, Kerr D, James J, Das UN, Meguid MM, and Jacobson MF. "Nutrition, Physical Activity, and Obesity." Lancet 360, no. 9341 (2002): 1249. https://doi.org/10.1016/s0140-6736(02)11249-9.

MLA (9th ed.) Citation

JB, Summers, et al. "Nutrition, Physical Activity, and Obesity." Lancet, vol. 360, no. 9341, 2002, p. 1249, https://doi.org/10.1016/s0140-6736(02)11249-9.