See, Craig <br/><br/>
Comparison of two methods for composite score generation in dry eye syndrome.  [electronic resource] 

 -  Investigative ophthalmology & visual science  Sep 2013 
 - 6280-6 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>1552-5783 
<br/><br/><label>Standard No.: </label>10.1167/iovs.13-12150  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Aged, 80 and over<br/>Conjunctiva--metabolism<br/>Cornea--metabolism<br/>Dry Eye Syndromes--diagnosis<br/>Humans<br/>Male<br/>Middle Aged<br/>Osmolar Concentration<br/>Severity of Illness Index<br/>Surveys and Questionnaires<br/>Tears--chemistry<br/>Veterans