12114
Although the vitality and function of the labeled islets was not impaired by any of the tested CAs , results indicate that LSMO @ siF @ si CA is a superior marker for islet labeling , as it provides better contrast enhancement within a shorter scan time .
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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:
 None