18753
Glucagon response to hypoglycemia on Expt - D2 deteriorated by 20 - fold in the placebo group ( P < 0 . 001 ) but improved in the SSTR2a group ( 3 - fold increase in AUC , P < 0 . 001 ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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