17972
At low and intermediate amounts of LL , a significantly different structure is observed , and the aggregates are in the form of small , relatively monodisperse vesicles ( i . e . , nanovesicles ) , L ( sv ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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