Pearl, S S <br/><br/>
Color defective individuals.  [electronic resource] 

 -  American journal of ophthalmology  May 1978 
 - 722-3 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0002-9394 
<br/><br/><label>Standard No.: </label>10.1016/s0002-9394(14)77117-x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Color Vision Defects<br/>Humans<br/>Melena--diagnosis<br/>Patient Education as Topic