The pedigree of the melanoma family with the 4q13 duplication. Age as shown is age at diagnosis for melanoma patients and age at evaluation for unaffected individuals. II-1 and II-3 were analyzed by whole-genome array-CGH; I-1, II-1, II-2, II-3, II-4, III-1, and IV-1 were analyzed by qPCR; II-1, II-2, II-3, II-4, and III-1 were analyzed by custom-made 4q13 tiling arrays.