13377
Inadvertent subsequent rechallenge with celiprolol led to recurrence of the pneumonitis , 10 weeks after drug readministration .
 pneumonitis, celiprolol
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:
 pneumonitis, celiprolol