18122
The goal of this research was to conduct an oral acute toxicity study of PAMAM dendrimers as a function of size and charge in immune competent CD - 1 mice .
 Chemical: PAMAM
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: PAMAM