APA (7th ed.) Citation

K, W., D, F., CS, F., WC, W., BW, H., EL, G., . . . Giovannucci, E. L. (2007). A nested case control study of plasma 25-hydroxyvitamin D concentrations and risk of colorectal cancer. JNCI: Journal of the National Cancer Institute, 99(14), 1120. https://doi.org/10.1093/jnci/djm038

Chicago Style (17th ed.) Citation

K, Wu, et al. "A Nested Case Control Study of Plasma 25-hydroxyvitamin D Concentrations and Risk of Colorectal Cancer." JNCI: Journal of the National Cancer Institute 99, no. 14 (2007): 1120. https://doi.org/10.1093/jnci/djm038.

MLA (9th ed.) Citation

K, Wu, et al. "A Nested Case Control Study of Plasma 25-hydroxyvitamin D Concentrations and Risk of Colorectal Cancer." JNCI: Journal of the National Cancer Institute, vol. 99, no. 14, 2007, p. 1120, https://doi.org/10.1093/jnci/djm038.