Hauswald, M <br/><br/>
Transvaginal ultrasonography in patients with human chorionic gonadotropin values less [corrected] than 1,000 mIU/mL: how often is the study diagnostic?  [electronic resource] 

 -  Annals of emergency medicine  Aug 1997 
 - 206-9 p.  digital 
<br/><br/> Publication Type: Editorial; Comment 
<br/><br/><label>ISSN: </label>0196-0644 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chorionic Gonadotropin, beta Subunit, Human--blood<br/>Diagnosis, Differential<br/>Female<br/>Humans<br/>Predictive Value of Tests<br/>Pregnancy<br/>Pregnancy, Ectopic--blood<br/>Risk<br/>Ultrasonography--economics<br/>Vagina