15300
UROtsa cells also expressed mRNA and protein for NGF and spontaneously released NGF to the medium in the course of hours ( 11 . 5 +/- 1 . 4pgNGF / mgprotein / h ) .
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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:
 None