McMahon, S., 		Kundomal, K., & 		Yangalasetty, S.
(2017).
 Pediatrics Norms for Visual Contrast Sensitivity Using an APT VCS Tester.
<em>Medical Research Archives, 5</em>(5).
Retrieved from <a href="https://esmed.org/MRA/mra/article/view/1295" target="_new">https://esmed.org/MRA/mra/article/view/1295</a>