2965
Following 48 h of cohabitation , females were tested for evidence of reproductive activation by assessing the level of male sexual interest , after which their brains were processed using Golgi impregnation , which allowed ventrolateral VMH neurons to be visualized and analyzed .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None