11232
Assessing the dose - response relationship of theophylline in another group of hemiparkinsonian rats ( n = 7 ) revealed that it caused stepping recovery in an all - or - none fashion .
 Chemical: theophylline
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: theophylline