1937
We assumed that the myogenic stem cells ( satellite cells ) in fast and slow muscles were intrinsically different in regard to the capacity that they convey to their respective muscle fibers to increase the extrajunctional ColQ expression upon innervation .
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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