1271
3 ) The progress of fibrinolysis was observed by serial collection of middle ear fluid in the same side ear of 5 cases out of 17 cases having much activity for fibrin degradation , and lowering of fibrinolytic activity was revealed in 4 out of these 5 cases as the result .
 GENE: fibrin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: fibrin