Commentary on ''Discriminatory hCG zone: its use in the sonographic evaluation for ectopic pregnancy'' - Kadar N, DeVore G, Romero R. Discriminatory hCG zone: its use in the sonographic evaluation for ectopic pregnancy. Obstet Gynecol 1981;58:156-61

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Publisher: Elsevier

ISSN: 0029-7844

Source: Obstetrics and Gynecology, Vol.102, Iss.4, 2003-10, pp. : 672-672

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Abstract