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A 50-year-old woman with a history of migraine without aura, predominantly occurring around her menstrual periods, developed a spinal cord lesion following the use of zolmitriptan.
 adverse event: developed 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: developed 