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LOH at three genetic loci in a 52-yr-old male with stage IV disease (A) and MSI at two genetic loci in a 47-yr-old male with stage II disease (B) shown as representative results of GeneScan. A: LOH at three genetic loci in a 52-yr-old male with stage IV disease; B: MSI at two genetic loci in a 47-yr-old male with stage II disease. 1Size of the PCR product (in bp). 2Fluorescence intensity of peak. 3Homozygosity. The arrowhead indicated novel alleles.
