APA način citiranja

Díez-Villanueva, P., Salamanca, J., Rojas, A., & Alfonso, F. (2017). Importance of frailty and comorbidity in elderly patients with severe aortic stenosis. J Geriatr Cardiol.

Čikaški stil citiranja

Díez-Villanueva, Pablo, Jorge Salamanca, Antonio Rojas, i Fernando Alfonso. "Importance of Frailty and Comorbidity in Elderly Patients With Severe Aortic Stenosis." J Geriatr Cardiol 2017.

MLA način citiranja

Díez-Villanueva, Pablo, Jorge Salamanca, Antonio Rojas, i Fernando Alfonso. "Importance of Frailty and Comorbidity in Elderly Patients With Severe Aortic Stenosis." J Geriatr Cardiol 2017.