Zhang, Zhen-Yong <br/><br/>
Refractive surgery for keratoconus.  [electronic resource] 

 -  Ophthalmology  Feb 2013 
 - 434 p.  digital 
<br/><br/> Publication Type: Letter; Comment 
<br/><br/><label>ISSN: </label>1549-4713 
<br/><br/><label>Standard No.: </label>10.1016/j.ophtha.2012.08.043  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Collagen--metabolism<br/>Corneal Stroma--metabolism<br/>Cross-Linking Reagents--therapeutic use<br/>Female<br/>Humans<br/>Keratoconus--drug therapy<br/>Lasers, Excimer--therapeutic use<br/>Male<br/>Photorefractive Keratectomy