Table 5.

The top 20 keywords involved in osteoblasts-osteoclasts in bone disease research.

Rank	Keywords	Count	Centrality	Rank	Keywords	Count	Centrality
1	Osteoporosis	812	0.04	11	Receptor Activator	340	0.01
2	Osteoclast	743	0.03	12	RANKL	310	0.01
3	Expression	693	0.02	13	Mesenchymal stem cells	298	0.04
4	Osteoblast	691	0.01	14	Activation	284	0.02
5	Differentiation	615	0.01	15	Disease	278	0.03
6	Bone	459	0.02	16	NF-KAPPA-B	254	0.04
7	Cell	423	0	17	Mineral Density	243	0.03
8	Osteoclast Differentiation	408	0.01	18	Gene-Expression	233	0.02
9	Osteoblasts Differentiation	364	0.01	19	Osteoprotegerin	229	0.02
10	In Vitro	347	0.02	20	Osteoclastogenesis	220	0.02