scholarly journals An investigation of simple methods for diagnosing vitamin a deficiency by measurements of dark adaptation

1941 ◽  
Vol 100 (3) ◽  
pp. 256-262 ◽  
Author(s):  
D. J. Dow ◽  
D. M. Steven
BMJ ◽  
1941 ◽  
Vol 2 (4220) ◽  
pp. 747-748
Author(s):  
J. Yudkin

The Lancet ◽  
1973 ◽  
Vol 302 (7839) ◽  
pp. 1161-1164 ◽  
Author(s):  
RobertM Russell ◽  
Richard Multack ◽  
VivianneC Smith ◽  
AlexE Krill ◽  
IrwinH Rosenberg

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