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22 points
THYROXINS is validvalid
THYROXIN, an amino acid [n]
THYROXIN, an iodine compound, a hormone forming the active principle of the thyroid gland, also THYROXINE [n]
THYROXIN, an amino acid [n]
THYROXIN, an iodine compound, a hormone forming the active principle of the thyroid gland, also THYROXINE [n]