Underinsured

C. Schoen, S. R. Collins, J. L. Kriss, and M. M. Doty, “How Many Are Underinsured? Trends Among U.S. Adults, 2003 and 2007,” Health Affairs Web Exclusive, June 10, 2008, w298–w309.

Pamela Farley Short et al., “New Estimates of Gaps and Transitions in Health Insurance,” Medical Care Research and Review, August 3, 2012.