2896
Mean total homocysteine ( tHcy ) was 21 . 1 + / - 9 . 5 micromol / L and median concentration was 19 micromol / L .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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