Stallard, H B <br/><br/>
PTERYGIUM.  [electronic resource] 

 -  The British journal of ophthalmology  Oct 1952 
 - 587 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0007-1161 
<br/><br/><label>Standard No.: </label>10.1136/bjo.36.10.587  doi