907
We report the case of a 17-year-old male who developed chest pain, elevated cardiac biomarkers, and acute left ventricular dysfunction following a single dose of methylphenidate.
 adverse event: following 
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: following 