Skuladottir AT, Bjornsdottir G, Ferkingstad E, Einarsson G, Stefansdottir L, Nawaz MS, Oddsson A, Olafsdottir TA, Saevarsdottir S, Walters GB, Magnusson SH, Bjornsdottir A, Sveinsson OA, Vikingsson A, Hansen TF, Jacobsen RL, Erikstrup C, Schwinn M, Brunak S, Banasik K, Ostrowski SR, Troelsen A, Henkel C, Pedersen OB; DBDS Genetic Consortium, Jonsdottir I, Gudbjartsson DF, Sulem P, Thorgeirsson TE, Stefansson H, Stefansson K.