APA (7th ed.) Citation

Lee, M. K. V., Vasikaran, S., Doery, J. C. G., Wijeratne, N., & Prentice, D. (2013). Cortisol:  ACTH ratio to test for primary hypoadrenalism: a pilot study. Postgraduate medical journal, 89(1057), 617-620. https://doi.org/10.1136/postgradmedj-2012-131723

Chicago Style (17th ed.) Citation

Lee, Mark K V., Samuel Vasikaran, James C G. Doery, Nilika Wijeratne, and David Prentice. "Cortisol:  ACTH Ratio to Test for Primary Hypoadrenalism: A Pilot Study." Postgraduate Medical Journal 89, no. 1057 (2013): 617-620. https://doi.org/10.1136/postgradmedj-2012-131723.

MLA (9th ed.) Citation

Lee, Mark K V., et al. "Cortisol:  ACTH Ratio to Test for Primary Hypoadrenalism: A Pilot Study." Postgraduate Medical Journal, vol. 89, no. 1057, 2013, pp. 617-620, https://doi.org/10.1136/postgradmedj-2012-131723.