The validity of a survey question to study diabetic retinopathy.
PubMed ID: 3717132 Author(s): Klein R, Klein BE, Moss SE, DeMets DL. The validity of a survey question to study diabetic retinopathy. Am J Epidemiol. 1986 Jul;124(1):104-10. Journal: American Journal Of Epidemiology, Volume 124, Issue 1, Jul 1986 This report presents the results of a comparison between information obtained from response to the question “Have …