Citação norma APA

Yosefy, C., Hung, J., Chua, S., Vaturi, M., Ton-Nu, T., Handschumacher, M. D., & Levine, R. A. (2009). Direct Measurement of Vena Contracta Area by Real-Time 3-Dimensional Echocardiography for Assessing Severity of Mitral Regurgitation.

Citação norma Chicago

Yosefy, Chaim, Judy Hung, Sarah Chua, Mordehay Vaturi, Thanh-Thao Ton-Nu, Mark D. Handschumacher, and Robert A. Levine. Direct Measurement of Vena Contracta Area By Real-Time 3-Dimensional Echocardiography for Assessing Severity of Mitral Regurgitation. 2009.

Citação norma MLA

Yosefy, Chaim, et al. Direct Measurement of Vena Contracta Area By Real-Time 3-Dimensional Echocardiography for Assessing Severity of Mitral Regurgitation. 2009.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.