1. Hospital readmission rates in U.S. States: Are readmissions higher where more patients with multiple chronic conditions cluster?;Basu;Health Serv. Res.,2016
2. Multiple Chronic Conditions in the United Stateshttps://www.rand.org/pubs/tools/TL221.html
3. Chronic Conditions among Older Americanshttps://assets.aarp.org/rgcenter/health/beyond_50_hcr_conditions.pdf
4. America’s Health and Health Care Depend on Preventing Chronic Diseasehttps://www.huffingtonpost.com/entry/americas-health-and-healthcare-depends-on-preventing_us_58c0649de4b070e55af9eade
5. How to Improve Patient Outcomes for Chronic Diseases and Comorbiditieshttp://www.healthcatalyst.com/wp-content/uploads/2014/04/How-to-Improve-Patient-Outcomes.pdf