DOI: 10.1055/s-00030576

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics

References

Cunningham FG, Leveno KJ, Bloom SL, Hauth JC, Rouse DJ, Spong CY.
Williams obstetrics. 23rd ed.

New York: McGraw-Hill; 2010

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