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"PNDS." Fullformexpand.com, https://www.fullformexpand.com/pnds/post-nasal-drip-syndrome. Accessed 25 Feb. 2026.
Fullformexpand.com, 2026. "PNDS." Accessed February 25, 2026. https://www.fullformexpand.com/pnds/post-nasal-drip-syndrome.
"PNDS." (n.d.). Fullformexpand.com. Retrieved February 25, 2026, from https://www.fullformexpand.com/pnds/post-nasal-drip-syndrome.
PNDS. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/pnds/post-nasal-drip-syndrome (Accessed: 25 February 2026).