DOI: 10.1055/s-00030576

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics

References

Gramellini D, Fieni S, Molina E, Berretta R, Vadora E.
Transvaginal sonographic cervical length changes during normal pregnancy.

J Ultrasound Med 2002;
21 (03) 227-232 , quiz 234–235

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