APA (7th ed.) Citation

Dart, J., & Stapleton, F. (1991). Contact lenses and other risk factors in microbial keratitis. Lancet, 338(8768), 650. https://doi.org/10.1016/0140-6736(91)91231-I

Chicago Style (17th ed.) Citation

Dart, J.K.G, and F. Stapleton. "Contact Lenses and Other Risk Factors in Microbial Keratitis." Lancet 338, no. 8768 (1991): 650. https://doi.org/10.1016/0140-6736(91)91231-I.

MLA (9th ed.) Citation

Dart, J.K.G, and F. Stapleton. "Contact Lenses and Other Risk Factors in Microbial Keratitis." Lancet, vol. 338, no. 8768, 1991, p. 650, https://doi.org/10.1016/0140-6736(91)91231-I.