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Patients treated with L - asparaginase may present with hemorrhagic and thrombotic cerebrovascular events .
 hemorrhagic, L - asparaginase; thrombotic cerebrovascular events, L - asparaginase
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:
 hemorrhagic, L - asparaginase; thrombotic cerebrovascular events, L - asparaginase