APA (7th ed.) Citation

C, P., T, B., O, O., L, F., D, H., & C, P. (2011). Sleep apnoea in severe aortic stenosis. Postgraduate Medical Journal, 87(1029), 458.

Chicago Style (17th ed.) Citation

C, Prinz, Bitter T, Oldenburg O, Faber L, Horstkotte D, and Piper C. "Sleep Apnoea in Severe Aortic Stenosis." Postgraduate Medical Journal 87, no. 1029 (2011): 458.

MLA (9th ed.) Citation

C, Prinz, et al. "Sleep Apnoea in Severe Aortic Stenosis." Postgraduate Medical Journal, vol. 87, no. 1029, 2011, p. 458.