APA (7th ed.) Citation

Ribeiro, R., Marinho, R., Velosa, J., Ramalho, F., Sanches, J., & Suri, J. S. (2013). The usefulness of ultrasound in the classification of chronic liver disease.

Chicago Style (17th ed.) Citation

Ribeiro, Ricardo, Rui Marinho, José Velosa, Fernando Ramalho, João Sanches, and J. S. Suri. The Usefulness of Ultrasound in the Classification of Chronic Liver Disease. 2013.

MLA (8th ed.) Citation

Ribeiro, Ricardo, et al. The Usefulness of Ultrasound in the Classification of Chronic Liver Disease. 2013.