APA (7th ed.) Citation

Sousa, C., Banazol, N., Afonso, D., Pinto, E., Cardona, L., Branco, L., & Arsénio, A. (2011). An Unusual Aortic Valve Mass.

Chicago Style (17th ed.) Citation

Sousa, C., N. Banazol, D. Afonso, E. Pinto, L. Cardona, LM Branco, and A. Arsénio. An Unusual Aortic Valve Mass. 2011.

MLA (8th ed.) Citation

Sousa, C., et al. An Unusual Aortic Valve Mass. 2011.