A contemporary approach to suspected ectopic pregnancy with use of quantitative and qualitative assays for the beta-subunit of human chorionic gonadotropin and sonography
Holman, J F, Tyrey, E L, Hammond, C B
Published in American journal of obstetrics and gynecology (15.09.1984)
Published in American journal of obstetrics and gynecology (15.09.1984)
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