Two founder variants account for over 90% of pathogenic BRCA alleles in the Orkney and Shetland Isles in Scotland. - Kerr SM; Klaric L; Muckian MD; Cowan E; Snadden L; Tzoneva G; Shuldiner AR; Miedzybrodzka Z; Wilson JF (European journal of human genetics : EJHG, 2024)