Add exon 13 amplification in BRCA1

[maehler]

There is a known duplication of exon 13 in BRCA1 that is a founder mutation. There is interest to add this to the list of small amplifications that should be considered, at least here in Umeå. Of course, we can do this locally, but we were thinking that this might also be of national interest.

References:

• The exon 13 duplication in the BRCA1 gene is a founder mutation present in geographically diverse populations
• The BRCA1 exon 13 duplication: clinical characteristics of 22 families in Northern Sweden