Social Isolation and Loneliness in Older Adults: Opportunities for the Health Care System, (National Academies Press, 2020, 320p., OpenBook and .pdf format). Note: More information, including purchasing information, for a print copy is available at the site. NAP requires free registration before providing a .pdf copy.
www.nap.edu/catalog/25663/social-isolation-and-loneliness-in-older-adults-opportunities-for-the