APA citiranje

Guarracino, F., De Cosmo, D., Penzo, D., Tedesco, M., Bossi, A., & De Stefani, R. (1999). Aortic valve replacement with 'stentless' versus mechanical prosthesis: What difference in postoperative ICU course? BioMed Central.

Citação norma Chicago

Guarracino, F., D. De Cosmo, D. Penzo, M. Tedesco, A. Bossi, and R. De Stefani. Aortic Valve Replacement With 'stentless' Versus Mechanical Prosthesis: What Difference in Postoperative ICU Course? BioMed Central, 1999.

MLA citiranje

Guarracino, F., et al. Aortic Valve Replacement With 'stentless' Versus Mechanical Prosthesis: What Difference in Postoperative ICU Course? BioMed Central, 1999.