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Five and one - half years after the diagnosis of myeloma , while in remission on cyclophosphamide therapy , the patient experienced severe abdominal right lower quadrant pain due to a large cecal lymphoma .
 abdominal right lower quadrant pain, cyclophosphamide; cecal lymphoma, cyclophosphamide
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:
 abdominal right lower quadrant pain, cyclophosphamide; cecal lymphoma, cyclophosphamide