R, R., P, G., & M, D. (1992). Assessing prosthetic heart valve function. Value of Doppler echocardiography and patient/prosthetic valve identity and follow-up card. Echocardiography (Mount Kisco, N.Y.), 9(6), 597. https://doi.org/10.1111/j.1540-8175.1992.tb00505.x
Chicago Style (17th ed.) CitationR, Roudaut, Gosse P, and Dallocchio M. "Assessing Prosthetic Heart Valve Function. Value of Doppler Echocardiography and Patient/prosthetic Valve Identity and Follow-up Card." Echocardiography (Mount Kisco, N.Y.) 9, no. 6 (1992): 597. https://doi.org/10.1111/j.1540-8175.1992.tb00505.x.
MLA (9th ed.) CitationR, Roudaut, et al. "Assessing Prosthetic Heart Valve Function. Value of Doppler Echocardiography and Patient/prosthetic Valve Identity and Follow-up Card." Echocardiography (Mount Kisco, N.Y.), vol. 9, no. 6, 1992, p. 597, https://doi.org/10.1111/j.1540-8175.1992.tb00505.x.