Fig. 4From: RETRACTED ARTICLE: Glycol chitosan incorporated retinoic acid chlorochalcone (RACC) nanoparticles in the treatment of OsteosarcomaRACC-induced apoptosis in MG-63 cells. Cultures were grown either in medium containing empty GC vesicles (control) or in a medium containing 5 μM or 20 μM RACC. The arrows indicate apoptotic cells; magnified image of cells was shown in cornerBack to article page