APA (7th ed.) Citation

Sandy, J., Kilpatrick, N., Persson, M., Bessel, A., Waylen, A., Ness, A., & Ireland, A. (2011). Why are multi-centre clinical observational studies still so difficult to run? British Dental Journal, 211(2), 59. https://doi.org/10.1038/sj.bdj.2011.570

Chicago Style (17th ed.) Citation

Sandy, J., N. Kilpatrick, M. Persson, A. Bessel, A. Waylen, A. Ness, and A. Ireland. "Why Are Multi-centre Clinical Observational Studies Still so Difficult to Run?" British Dental Journal 211, no. 2 (2011): 59. https://doi.org/10.1038/sj.bdj.2011.570.

MLA (9th ed.) Citation

Sandy, J., et al. "Why Are Multi-centre Clinical Observational Studies Still so Difficult to Run?" British Dental Journal, vol. 211, no. 2, 2011, p. 59, https://doi.org/10.1038/sj.bdj.2011.570.