1700
RESULTS : In exposed neonates , TEOAEs mean response ( across frequency ) and mean amplitude at 4000Hz was significantly lower than in non - exposed neonates .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities:  
Answer:
 None