APA (7th ed.) Citation

Diffey, B. L. (2010). Sunlight or diet: What is the answer for providing sufficient vitamin D in the U.K.?: reply from author. The British journal of dermatology, 163(2), 435. https://doi.org/10.1111/j.1365-2133.2010.09902.x

Chicago Style (17th ed.) Citation

Diffey, B. L. "Sunlight or Diet: What Is the Answer for Providing Sufficient Vitamin D in the U.K.?: Reply from Author." The British Journal of Dermatology 163, no. 2 (2010): 435. https://doi.org/10.1111/j.1365-2133.2010.09902.x.

MLA (9th ed.) Citation

Diffey, B. L. "Sunlight or Diet: What Is the Answer for Providing Sufficient Vitamin D in the U.K.?: Reply from Author." The British Journal of Dermatology, vol. 163, no. 2, 2010, p. 435, https://doi.org/10.1111/j.1365-2133.2010.09902.x.