10984
Here we report pro - angiogenic activity of perivitelline fluid ( PVF ) from Indian horseshoe crab embryos and one of its purified fractions , a 27 kDa lectin , using the chick embryonic chorioallantoic membrane assay .
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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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