O1S1T1E1O1S1A1R1C3O1M3A1S1
17 points
OSTEOSARCOMAS is validvalid
OSTEOSARCOMA,
OSTEOSARCOMA, a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells
OSTEOSARCOMA,
OSTEOSARCOMA, a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells