Biological valves beyond fifteen years: the Wessex experience.

MLA

Edwards, T. J., et al. “Biological Valves beyond Fifteen Years: The Wessex Experience.” The Annals of Thoracic Surgery, vol. 60, no. 2 Suppl, Aug. 1995, pp. S211–15. EBSCOhost, https://doi.org/10.1016/0003-4975(95)00220-f.

APA

Edwards, T. J., Livesey, S. A., Simpson, I. A., Monro, J. L., & Ross, J. K. (1995). Biological valves beyond fifteen years: the Wessex experience. The Annals of Thoracic Surgery, 60(2 Suppl), S211–S215. https://doi.org/10.1016/0003-4975(95)00220-f

Chicago

Edwards, T J, S A Livesey, I A Simpson, J L Monro, and J K Ross. 1995. “Biological Valves beyond Fifteen Years: The Wessex Experience.” The Annals of Thoracic Surgery 60 (2 Suppl): S211–15. doi:10.1016/0003-4975(95)00220-f.