https://www.selleckchem.com/products/dtnb.html
8%) referrals by CEHW using SVS. The overall sensitivity of SVS was 91.7% (95% CI 80%-97.7%) and the specificity was 93.4% (95% CI 91.6%-94.9%). Positive predictive value was 41.9% (95% CI 32.3%-51.9%) and negative predictive value was 99.5% (95% CI 98.8%-99.9%) with a moderate agreement (0.54; 95% CI 0.49-0.64) between VT screening and screening with SVS. The SVS showed good diagnostic accuracy and agreement in screening for possible vision-related disorders in preschool children. The SVS showed good diagnostic accuracy and agreement in s
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