%0 Journal Article %J New England Journal of Medicine %D 2009 %T Changes in the Incidence and Duration of Periods Without Insurance %A David M Cutler %A Alex Gelber %B New England Journal of Medicine %V 360 %P 1740-1748 %G eng %U http://www.nejm.org/doi/full/10.1056/NEJMsa0804668 %N 17