APA (7th ed.) Citation

De Angelis, F., John, N. A., & Brownlee, W. J. (2018). Disease-modifying therapies for multiple sclerosis. BMJ (Online), 363, k4674. https://doi.org/10.1136/bmj.k4674

Chicago Style (17th ed.) Citation

De Angelis, Floriana, Nevin A. John, and Wallace J. Brownlee. "Disease-modifying Therapies for Multiple Sclerosis." BMJ (Online) 363 (2018): k4674. https://doi.org/10.1136/bmj.k4674.

MLA (9th ed.) Citation

De Angelis, Floriana, et al. "Disease-modifying Therapies for Multiple Sclerosis." BMJ (Online), vol. 363, 2018, p. k4674, https://doi.org/10.1136/bmj.k4674.