Hassan, Bilal, et al. “CORRELATION OF AGE WITH CENTRAL CORNEAL THICKNESS AND CORNEAL ENDTHELIAL CELL DENSITY IN PAKISTANI POPULATION”.
Pakistan Armed Forces Medical Journal, vol. 68, no. 6, Dec. 2018, pp. 1720-24,
https://www.pafmj.org/PAFMJ/article/view/2595.