18372
Neurotrophin 3 genotype and emotional adverse effects of osmotic - release oral system methylphenidate ( OROS - MPH ) in children with attention - deficit / hyperactivity disorder .
 Chemical: methylphenidate; Chemical: MPH
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: methylphenidate; Chemical: MPH