Authors: Katarina Drakenberg; Andrej Nikoshkov; Monika Cs Horváth; Pernilla Fagergren; Anna Gharibyan; Kati Saarelainen; Sadia Rahman; Ingrid Nylander; Georgy Bakalkin; Jovan Rajs; Eva Keller; Yasmin L Hurd Journal: Proc Natl Acad Sci U S A Date: 2006-05-08 Impact factor: 11.205