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Importantly , in vivo ERK1 / 2 inhibition by daily injection of a recombinant form of C - type natriuretic peptide to post - natal pups for 18 days was able to correct the short stature of Nf1col2 ( - / - ) mice .
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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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