240
Significant ( p < 0 . 05 ) decreases were determined among groups in memory function and results showed that exposure to an 8 mT , 50 Hz EMF for 4 h has devastating effects on memory consolidation in male and female mice .
 None
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:  
Answer:
 None