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Using MPs loaded with simvastatin ( pro or active drug ) or BMP - 2 , we have demonstrated osteogenic differentiation within the 3D aggregates , maintained in culture for up to 21days , and quantified by real time QPCR for osteocalcin .
 Chemical: simvastatin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: simvastatin