Giessmann, H G <br/><br/>
Researches about acquired colour vision defects.  [electronic resource] 

 -  Bulletin of the Ophthalmological Society of Egypt  1971 
 - 279-84 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0078-5342 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Color Perception Tests<br/>Color Vision Defects--congenital<br/>Humans<br/>Retinal Pigments