17147
Methods : We examined immunohistochemical expression of Hh signaling mediators Sonic Hedgehog ( Shh ) and Glioblastoma ( Gli ) 2 in paraffin - embedded normal versus histologically characterized human MTC tissue .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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