13967
The combination of antitumor drugs and electric pulses ( ECT ) led to changes in spheroid macroscopic morphology and cell cohesion , to tumor spheroid growth arrest and finally to its complete apoptosis - mediated dislocation , mimicking previously observed in vivo situations .
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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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