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Birth rates, fetal growth-restriction rates (FGR) and perinatal mortality rates among whites and blacks. Legend text: Birth rates (4a and 4c) and fetal growth-restriction (FGR) rates (4b and 4d) in relation to perinatal mortality rates at 28 to ≥42 weeks (4a and 4b) and at 28 to 36 weeks gestation (4c and 4d) among white and black births calculated using the fetuses-at-risk approach, United States, 1997.
