Osarcoma in PubMed databaseProteomic study Os vs OB cells152 Os vs benign bone tumor tissues493 Metastasis vs non-metastasis21,546 chemoresistance57,58 responsiveness to numerous medicines594 Responsiveness under certain stimulus conditions37,38 Os cell lines659 serum or plasma of Os patients704 TotalAbbreviations: Os, osteosarcoma; OB, osteoblastic.Number of articles 8 5 four 2 6 two five 5might