ADL	activities of daily living
ALP	alkaline phosphatase
BMSC	bone marrow-derived mesenchymal stem cell
DDS	drug delivery system
ELISA	enzyme-linked immunosorbent assay
ES cell	embryonic stem cell
HA	hydroxyapatite
IGF	insulin-like growth factor
iPS cell	induced pluripotent stem cell
MSC	mesenchymal stem cell
MTT assay	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay
OCN	osteocalcin
OPN	osteopontin
PCL	polycaprolactone
PDGF	platelet derived growth factor
PEG	polyethylene glycol
PLA	poly lactic acid
PLLA	poly-l-lactic acid
PLA-DX-PEG	poly lactic acid-p-dioxanone-polyethylene glycol block copolymer
PLGA	polylactic-co-glycolic acid
PRP	platelet-rich plasma
PVA	poly (vinyl alcohol)
rhBMP	recombinant human bone morphogenetic protein
SEM	scanning electron microscopy
TCP	tricalcium phosphate
VEGF	vascular endothelial growth factor