AU - Covinsky KE TI - The differential diagnosis of living alone: Comment on “living alone and risk of mortality in older, community-dwelling adults” PT - JOUR DP - 2013 TA - JAMA Internal Medicine pages = {321}, VI - 173 IP - 4 AID - 10.1001/jamainternmed.2013.1617 [doi] 4100 - http://dx.doi.org/10.1001/jamainternmed.2013.1617 SO - JAMA Internal Medicine February 25, 2013 173(4):321