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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 .
 acute left ventricular dysfunction, methylphenidate; chest pain, methylphenidate; elevated cardiac biomarkers, methylphenidate
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:
 acute left ventricular dysfunction, methylphenidate; chest pain, methylphenidate; elevated cardiac biomarkers, methylphenidate