O1S1T1E1O1S1A1R1C3O1M3A1
16 points
OSTEOSARCOMA is validvalid
a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells
a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells
a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells
a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells