New sources of sex cells.  [electronic resource] 

 -  Nature  Apr 2008 
 - 913 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>1476-4687 
<br/><br/><label>Standard No.: </label>10.1038/452913a  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Embryo Research--ethics<br/>Female<br/>Humans<br/>Male<br/>Ovum--cytology<br/>Pluripotent Stem Cells--cytology<br/>Pregnancy<br/>Skin--cytology<br/>Spermatozoa--cytology