Smith, D H <br/><br/>
Twin pregnancy suspected before implantation.  [electronic resource] 

 -  Obstetrics and gynecology  Aug 1980 
 - 252-4 p.  digital 
<br/><br/> Publication Type: Case Reports; Journal Article 
<br/><br/><label>ISSN: </label>0029-7844 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Female<br/>Humans<br/>Ovulation Detection--methods<br/>Pregnancy<br/>Pregnancy Tests--methods<br/>Pregnancy, Multiple<br/>Twins<br/>Ultrasonography