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            ______    _  _    __   __    _____   
    ___    /_   _//  | \| ||  \ \\/ //  |__  //  
   /   ||   -| ||-   |  ' ||   \ ` //     / //   
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Text this: Osteo-maturation of adipose-derived stem cells required the combined action of vitamin D3, β-glycerophosphate, and ascorbic acid