Update and interpretation of 2021 National Comprehensive Cancer Network (NCCN) "Clinical Practice Guidelines for Bone Tumors"
                                                Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi; 35 (9), 2021                                            
                                        
                                                                                    
                                                The incidence of primary malignant bone tumors is low, and clinical cognition is insufficient. The establishment of diagnostic criteria is of great significance for prognosis of tumors. National Comprehensive Cancer Network (NCCN) regularly publishes "Clinical Practice Guidelines for Bone Tumors" to summ...                                            
                                        
                                                                                    
                                        
                                                                                    
                                                                             
                        