APA (7th ed.) Citation

ES, K., ZT, B., & PZ, Z. (2009). Is haemoglobin A1c a step forward for diagnosing diabetes? BMJ: British Medical Journal (Overseas & Retired Doctors Edition), 339(7733), b4432. https://doi.org/10.1136/bmj.b4432

Chicago Style (17th ed.) Citation

ES, Kilpatrick, Bloomgarden ZT, and Zimmet PZ. "Is Haemoglobin A1c a Step Forward for Diagnosing Diabetes?" BMJ: British Medical Journal (Overseas & Retired Doctors Edition) 339, no. 7733 (2009): b4432. https://doi.org/10.1136/bmj.b4432.

MLA (9th ed.) Citation

ES, Kilpatrick, et al. "Is Haemoglobin A1c a Step Forward for Diagnosing Diabetes?" BMJ: British Medical Journal (Overseas & Retired Doctors Edition), vol. 339, no. 7733, 2009, p. b4432, https://doi.org/10.1136/bmj.b4432.