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"PTHC." Fullformexpand.com, https://www.fullformexpand.com/pthc/peripheral-thyroid-hormone-conversion. Accessed 18 Feb. 2026.
Fullformexpand.com, 2026. "PTHC." Accessed February 18, 2026. https://www.fullformexpand.com/pthc/peripheral-thyroid-hormone-conversion.
"PTHC." (n.d.). Fullformexpand.com. Retrieved February 18, 2026, from https://www.fullformexpand.com/pthc/peripheral-thyroid-hormone-conversion.
PTHC. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/pthc/peripheral-thyroid-hormone-conversion (Accessed: 18 February 2026).