Diehr P, Madden CW, Cheadle A, Patrick D, Fishman P, Char P, Skillman S. Estimating county percentages of people without health insurance. Inquiry. 1991 Winter;28(4):413-9.
Diehr P, Madden CW, Cheadle A, Patrick D, Fishman P, Char P, Skillman S. Estimating county percentages of people without health insurance. Inquiry. 1991 Winter;28(4):413-9.