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Mazzalai, Franco, Oreste Terranova, Mario Gruppo, Giorgio Meneghetti, Claudio Baracchini, and Enzo Ballotta. "Octogenarians and Nonagenarians With Severe Symptomatic and Asymptomatic Carotid Disease: Does Older Age Indicate "high Risk" for Carotid Endarterectomy?" BMC Geriatr 2009.

Mazzalai, Franco, et al. "Octogenarians and Nonagenarians With Severe Symptomatic and Asymptomatic Carotid Disease: Does Older Age Indicate "high Risk" for Carotid Endarterectomy?" BMC Geriatr 2009.