Cita APA

Zhang, Y., Ihlen, H., Myhre, E., Levorstad, K., & Nitter-Hauge, S. (1985). Measurement of mitral regurgitation by Doppler echocardiography.

Chicago Style Citation

Zhang, Y., H. Ihlen, E. Myhre, K. Levorstad, i S. Nitter-Hauge. Measurement of Mitral Regurgitation By Doppler Echocardiography. 1985.

Cita MLA

Zhang, Y., et al. Measurement of Mitral Regurgitation By Doppler Echocardiography. 1985.