Assertion: tumor's cell | /r/CapableOf | aid in air and blood flow control
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Source sentences:
text: These tumors—which make up only 1 to 2 percent of lung cancers—are made up of neuroendocrine cells (cells in the lung that aids in air and blood flow control, growth of other lung cells, and oxygen detection), grow more slowly than other types of lung cancer, and don’t tend to spread.