Cameron, A H <br/><br/>
The Birmingham twin survey.  [electronic resource] 

 -  Proceedings of the Royal Society of Medicine  Mar 1968 
 - 229-34 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0035-9157 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Alkaline Phosphatase<br/>Blood Group Antigens<br/>England<br/>Erythrocytes--enzymology<br/>Female<br/>Fetal Death<br/>Genotype<br/>Humans<br/>Male<br/>Placenta--anatomy & histology<br/>Pregnancy<br/>Pregnancy, Multiple<br/>Twins<br/>Twins, Conjoined