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Representative examples of 3p loss of heterozygosity (LOH). Representative autoradiographs showing allelic losses for the markers at 3p21–22 (D3S2407, D3S1621, D3S1578, D3S1289, and D3S2408) in breast tumours. For each autoradiograph the case number is on the top. N, normal; T, tumour DNA. Arrowheads represent LOH.
