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| publishing year | previous | first author | document title |
|---|---|---|---|
| 2003 | Revista Brasileira de Ginecologia e Obstetrícia | Freitas-Júnior, Reginaldo Antônio de Oliveira | Changes in cervical length during pregnancy measured by transvaginal ultrasound |
| 2005 | Radiologia Brasileira | Pires, Claudio Rodrigues | A comparative study between morphologic ultrasonographic markers for preterm delivery: funneling sign and absence of cervical gland area |
| 2009 | Radiologia Brasileira | Novaes, Carlos Eduardo Ferreira | Preterm labor diagnosis by sonographic measurement of the uterine cervical length |
| 2011 | Revista Brasileira de Ginecologia e Obstetrícia | Oliveira, Tenilson Amaral | The progesterone receptor gene polymorphism as factor of risk for the preterm delivery |
| 2002 | Revista Brasileira de Ginecologia e Obstetrícia | Carvalho, Mário Henrique Burlacchini de | Risk assessment for spontaneous preterm delivery according to cervical length in the first and second trimesters of pregnancy |