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She had just finished a 3-week course of intravenous tobramycin for bronchiectasis and had an elevated serum tobramycin trough level 1 week before the onset of tetany .
 tetany, tobramycin
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:
 tetany, tobramycin