3123
Mean weighted skin temperature ( Tsk ) was lower ( P less than 0 . 01 ) following acclimation than before , and acclimation resulted in a larger ( P less than 0 . 02 ) Tre - to - Tsk gradient .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
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