Liwska, J <br/><br/>
Ultrastructure of the secondary yolk sac in pig's embryo.  [electronic resource] 

 -  Folia morphologica  1994 
 - 269-83 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0015-5659 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Embryonic and Fetal Development--physiology<br/>Swine--embryology<br/>Yolk Sac--ultrastructure