Embryo research (contd)  [electronic resource] 

 -  Nature   
 - 666 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0028-0836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Beginning of Human Life<br/>Blastocyst<br/>Embryo Research<br/>Ethics, Medical<br/>Fertilization in Vitro<br/>Humans<br/>Life