19759
A PAMAM dendrimer generation dependent increase in ROS and genotoxicity was observed , consistent with our previous studies .
 Chemical: PAMAM
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PAMAM 
Answer:
 Chemical: PAMAM