Dow, D J <br/><br/>
An investigation of simple methods for diagnosing vitamin a deficiency by measurements of dark adaptation.  [electronic resource] 

 -  The Journal of physiology  Nov 1941 
 - 256-62 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-3751 
<br/><br/><label>Standard No.: </label>10.1113/jphysiol.1941.sp003940  doi