Homozygosity for autosomal dominant facioscapulohumeral muscular dystrophy (FSHD) does not result in a more severe phenotype - Tonini, M. M. O; Pavanello, R C M; Gurgel-Giannetti, J; Lemmers, R J; Maarel, Silvere M. van der; Frants, R R; Zatz, Mayana (Journal of Medical Genetics, 2004)