9603
One patient developed large intramural esophageal hematoma as a complication of heparin therapy .
 large intramural esophageal hematoma, heparin
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 large intramural esophageal hematoma, heparin