Somatic mosaicism of an intragenic FANCB duplication in both fibroblast and peripheral blood cells observed in a Fanconi anemia patient leads to milder phenotype.
Asur RS, Kimble DC, Lach FP, Jung M, Donovan FX, Kamat A, Noonan RJ, Thomas JW, Park M, Chines P, et al. Mol Genet Genomic Med. 2018 Jan; 6(1):77-91. Epub 2017 Nov 30.