6990
We report an HIV - infected woman who developed mild leukopenia as the first sign of a nevirapine - related adverse event , which was followed by skin and hepatic toxicity associated with a more severe leukopenia .
 leukopenia, nevirapine; leukopenia, nevirapine; skin and hepatic toxicity, nevirapine
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:
 leukopenia, nevirapine; leukopenia, nevirapine; skin and hepatic toxicity, nevirapine