Figure 1From: Impact of vaccine economic programs on physician referral of children to public vaccine clinics: a pre-post comparisonPercentage of physicians in 2003 likely to refer children to public health department vaccine clinics by participation in VFC and by patient insurance status. Vaccine, Zimmerman, RK, et al. Legend: Likely is defined as 6 to 10 on a scale of 0 to 10. ** P ≤ 0.001 * P ≤ 0.05Back to article page