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. 2002 Dec 2;87(12):1431–1436. doi: 10.1038/sj.bjc.6600653

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Copyright © 2002 Cancer Research UK

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Part of the PTEN/MMAC1 cDNA sequences in melanomas in comparison to the wild type sequences. Guanine was found to be exchanged by adenine at nucleotide 1420 in a nodular melanoma, Clark's level III (left). Cytosine was found to be exchanged by thymine at nucleotide 1808 in a nodular melanoma Clark's level II (right).