18568
We make a plea that authors aiming to explore this potential use of brain AChE activity in the future : ( a ) are aware of the biases that their experimental approach might exert upon this neurochemical parameter , ( b ) avoid the use of anaesthesia as a mode of sacrifice and clarify its timing , ( c ) decide upon the use of previously - studied in vivo experimental schemes ( so that they can provide comparable results ) , and finally , ( d ) identify pharmacological , biochemical and molecular approaches that are appropriate to clarify the implicated mechanism ( s ) through which Cd modifies AChE activity .
 Chemical: Cd
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: Cd