11161
We identified , using western blotting and PCR that N - 38 neurons express full - length 66kDa ER alpha and a 52kDa ER alpha spliced variant missing the fourth exon - ER alpha Delta 4 .
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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:
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