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Summary of chromosome 1 status in 108 astrocytic tumours
A, diffuse astrocytomas malignancy grade II; AA, anaplastic astrocytomas; GB, glioblastomas; 1994 cases, tumors operated within the calendar year of 1994 (see text)
the number of cases with hemizygous deletion of all 1p clones with or without other abnormalities
tumors that have deletion at 1p36 but not for the whole 1p
Gains limited to the homologous region to chromosome 7 were not included
