176
Immunoreactivity was detected with either Alexa - conjugated secondary antibody ( Molecular Probes ) or a combination of biotin - conjugated secondary antibody ( Vector Laboratories ) and Alexa - conjugated streptavidin ( Molecular Probes ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
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