Prediction of response to neoadjuvant chemotherapy for osteosarcoma by gene-expression profiles Colour Doppler ultrasound predicts chemotherapy response, but not survival in paediatric osteosarcoma An Expression Signature Classifies Chemotherapy-Resistant Pediatric Osteosarcoma Relationship between Histologic Grade and Cytofluorometric Cellular DNA and RNA Content in Primary Bone Tumors Expression Profiles of Osteosarcoma That Can Predict Response to Chemotherapy The Association of P-Glycoprotein with Response to Chemotherapy and Clinical Outcome in Patients with Osteosarcoma Analysis of Sensitivity to Doxorubicin in High-Grade Osteosarcoma Improved Understanding of Treatment Response using Microarrays and existing biological knowledge Selection of Markers to Predict Tumour Response Or Survival: Description of a Novel Approach Human Osteosarcoma Xenografts and Their Sensitivity to Chemotherapy