Xu, Liang <br/><br/>
Prevalence and risk factors of lens opacities in urban and rural Chinese in Beijing.  [electronic resource] 

 -  Ophthalmology  May 2006 
 - 747-55 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1549-4713 
<br/><br/><label>Standard No.: </label>10.1016/j.ophtha.2006.01.026  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Aged<br/>Aged, 80 and over<br/>Asian People--statistics & numerical data<br/>Cataract--classification<br/>Cataract Extraction--statistics & numerical data<br/>China--epidemiology<br/>Cross-Sectional Studies<br/>Female<br/>Humans<br/>Male<br/>Middle Aged<br/>Prevalence<br/>Risk Factors<br/>Rural Population--statistics & numerical data<br/>Urban Population--statistics & numerical data