1672
Initial treatment with heparin was substituted with thrombolysis , which resulted in clinical improvement and dissolution of right heart thrombus but was followed by fatal intracerebral haemorrhage .
 fatal intracerebral haemorrhage, 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:
 fatal intracerebral haemorrhage, heparin