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After infliximab treatment , additional sleep studies revealed an increase in the number of apneic events and SaO2 dips suggesting that TNFalpha plays an important role in the pathophysiology of sleep apnea .
 adverse effect: increase in the number of apneic events, infliximab; adverse effect: SaO2 dips, infliximab
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: increase in the number of apneic events, infliximab; adverse effect: SaO2 dips, infliximab