Fullformexpand.com, 2026. "PANDO." Accessed April 20, 2026. https://www.fullformexpand.com/pando/primary-acquired-nasolacrimal-duct-obstruction.
"PANDO." (n.d.). Fullformexpand.com. Retrieved April 20, 2026, from https://www.fullformexpand.com/pando/primary-acquired-nasolacrimal-duct-obstruction.
PANDO. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/pando/primary-acquired-nasolacrimal-duct-obstruction (Accessed: 20 April 2026).