APA (7th ed.) Citation

Ravara, S B, Castelo-Branco,  M, Aguiar, Pedro, & Calheiros, J M. (2018). Are physicians aware of their role in tobacco control?

Chicago Style (17th ed.) Citation

Ravara, S B, Castelo-Branco,  M, Aguiar, Pedro, and Calheiros, J M. Are Physicians Aware of Their Role in Tobacco Control? 2018.

MLA (8th ed.) Citation

Ravara, S B, et al. Are Physicians Aware of Their Role in Tobacco Control? 2018.