“Community Acquired Pneumonia in the Elderly: The Pneumonia in Italian Acute Care for Elderly Units (PIACE) Study Protocol by the Italian Society of Hospital and Community Geriatrics (SIGOT)”. Geriatric Care 2, no. 3 (January 31, 2017). Accessed May 24, 2026. https://www.pagepressjournals.org/gc/article/view/6569.