Epidemiology of Multimorbidity and Implications for Health Care, Research, and Medical Education: A Cross-Sectional Study

Barnett, Karen, Stewart W Mercer, Michael  Norbury, Graham Watt, Sally  Wyke, and Bruce Guthrie.

The Lancet 380, no. 9836 (May 10, 2012 2012): p37-p43. https://doi.org/DOI:https://doi.org/10.1016/S0140-6736(12)60240-2.