27044
Starting two weeks after permanent left coronary artery ligation , rats received i . p . injections of HBSP ( 60 micro g / kg ) or saline 2 times / week for 10 months .
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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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