24896
After determination of the properties required for a suitable cell - harvesting system , optimization of the process allows single cells or cell sheets from at least two types of cells ( HFF - 1 and ADSCs ) to be rapidly harvested .
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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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