Vaginal sonography versus serum human chorionic gonadotropin in early detection of pregnancy

Discriminatory hCG zone: its use in the sonographic evaluation for ectopic pregnancy.

1981 • 280 citations

Early gestation: correlation of HCG levels and sonographic identification

1985 • 68 citations

Landmarks during the first forty-two days of gestation demonstrated by the β-subunit of human chorionic gonadotropin and ultrasound

1983 • 45 citations

Gestational-pseudogestational sac: A new ultrasonic criterion for differential diagnosis

1983 • 22 citations

Diagnostic Ultrasound

1987 • 18 citations

[A new vaginal method of ultrasonotomography].

1969 • 17 citations

Early intrauterine pregnancy or decidual cast: an anatomic--sonographic approach.

1983 • 10 citations

Die vaginosonographische Pelvimetrie als neue Methode zur sonographischen Bestimmung der inneren Beckenmaße

1986 • 7 citations

Abnormal Pregnancy: Early Diagnosis by US and Serum Chorionic Gonadotropin Levels

1986 • 4 citations