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"A1AT." Fullformexpand.com, https://www.fullformexpand.com/a1at/alpha-1-antitrypsin. Accessed 20 Feb. 2026.
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"A1AT." (n.d.). Fullformexpand.com. Retrieved February 20, 2026, from https://www.fullformexpand.com/a1at/alpha-1-antitrypsin.
A1AT. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/a1at/alpha-1-antitrypsin (Accessed: 20 February 2026).