Villaseņor, R A <br/><br/>
Comparison of ultrasonic corneal thickness measurements before and during surgery in the prospective evaluation of Radial Keratotomy (PERK) Study.  [electronic resource] 

 -  Ophthalmology  Mar 1986 
 - 327-30 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0161-6420 
<br/><br/><label>Standard No.: </label>10.1016/s0161-6420(86)33746-1  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cornea--pathology<br/>Humans<br/>Intraoperative Period<br/>Preoperative Care<br/>Prospective Studies<br/>Time Factors<br/>Ultrasonography