16703
In addition , all the isolates were tested for their cytotoxicities against the A549 ( lung cancer ) , DU - 145 ( prostate cancer ) , MCF - 7 ( breast cancer ) , and SK - N - SH ( neuroblastoma ) .
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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