670
Severe osteomalacia was present in two epileptic patients who were under long-term treatment with congeners of phenytoin, phenobarbital, and acetazolamide.
 adverse event: present 
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: present 