4771
The effects of Codonopsis pilosula oral liquor ( CPOL ) on tissue - type plasminogen activator ( t - PA ) and plasminogen activator inhibitor ( PAI ) in the plasma of 25 patients of coronary heart disease with blood stasis were studied .
 tissue - type plasminogen activator, t - PA, plasminogen activator inhibitor, PAI
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 tissue - type plasminogen activator, t - PA, plasminogen activator inhibitor, PAI