16349
Indeed , ectopic expression of chondrocyte maker genes were observed in the perichondrium of metatarsals in Gli1 ( - / - ) fetuses , and the phenotype was more severe in Gli1 ( - / - ) ; Gli2 ( - / - ) newborns .
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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:
 None