5022
We report the first histopathologically documented case of oral mucosa pigmentation after OLP treatment with topical tacrolimus .
 oral mucosa pigmentation, tacrolimus
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:
 oral mucosa pigmentation, tacrolimus