Citation: Sm. Koroukian et al., Estimating the proportion of unnecessary cesarean sections in Ohio using birth certificate data (vol 51, pg 1331, 1998), J CLIN EPID, 52(4), 1999, pp. 379-379
Citation: Sm. Koroukian et al., Estimating the proportion of unnecessary Cesarean sections in Ohio using birth certificate data, J CLIN EPID, 51(12), 1998, pp. 1327-1334