7415
RESULTS : In a 22-year - old Thai woman with Graves ' disease , tinnitus , hearing impairment in the left ear ( with progression to the right ear ) , and vertigo developed after 3 years of therapy with PTU .
 hearing impairment in the left ear ( with progression to the right ear ), PTU; tinnitus, PTU; vertigo, PTU
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:
 hearing impairment in the left ear ( with progression to the right ear ), PTU; tinnitus, PTU; vertigo, PTU