831
On the next day , after a total dose of only 600 mg of danazol , gingival bleeding and purpura occurred .
 gingival bleeding, danazol; purpura, danazol
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:
 gingival bleeding, danazol; purpura, danazol