| Prediction of preterm delivery with transvaginal ultrasonography of thecervix in patients with high-risk pregnancies: Does cerclage preventprematurity? |
Berghella, V.;Daly, S.F.;Tolosa, J.E.;DiVito, M.M.;Chalmers, R.;Garg, N.;Bhullar, A.;Wapner, R.J.; |
American Journal of Obstetrics and Gynecology |
1999-10-01 |
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