11119
Slow acetylators , who comprise roughly 50 % of the South African population , are likely to develop clinical and biochemical features of phenytoin toxicity when this drug is given together with antituberculosis therapy .
 phenytoin toxicity, phenytoin
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:
 phenytoin toxicity, phenytoin