4483
A small increase ( 1 . 5 - fold ) also occurred in the L1 DRG , but no change was detected in the L2 and L5 DRG .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None