Inclusion criteria
tumor, astrocytoma
TUMOR, ASTROCYTOMA
(i) Patients with astrocytoma of the brain diagnosed in 2004–2015; (ii) The international tumor code ICD-0-3 is C70.0-C75.3, including the brain, frontal lobe, parietal lobe, temporal lobe, occipital lobe, etc. (iii) Those with complete clinical information.