APA (7th ed.) Citation

Quint, J. K., Müllerova, H., DiSantostefano, R. L., Forbes, H., Eaton, S., Hurst, J. R., . . . Smeeth, L. (2014). Validation of chronic obstructive pulmonary disease recording in the Clinical Practice Research Datalink (CPRD-GOLD). BMJ open, 4(7), e005540. https://doi.org/10.1136/bmjopen-2014-005540

Chicago Style (17th ed.) Citation

Quint, Jennifer K., Hana Müllerova, Rachael L. DiSantostefano, Harriet Forbes, Susan Eaton, John R. Hurst, Kourtney Davis, and Liam Smeeth. "Validation of Chronic Obstructive Pulmonary Disease Recording in the Clinical Practice Research Datalink (CPRD-GOLD)." BMJ Open 4, no. 7 (2014): e005540. https://doi.org/10.1136/bmjopen-2014-005540.

MLA (9th ed.) Citation

Quint, Jennifer K., et al. "Validation of Chronic Obstructive Pulmonary Disease Recording in the Clinical Practice Research Datalink (CPRD-GOLD)." BMJ Open, vol. 4, no. 7, 2014, p. e005540, https://doi.org/10.1136/bmjopen-2014-005540.