280: Sonographic characteristics of the cervix in women with twin gestations at risk of preterm birth
| Autor: | Pittini, Alex, Barrett, Jon, Stratulat, Vasilica, Glanc, Phyllis, Melamed, Nir |
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| Zdroj: | In American Journal of Obstetrics and Gynecology January 2017 216(1) Supplement:S171-S171 |
| Databáze: | ScienceDirect |
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