Alu sequences in undifferentiated human embryonic stem cells display high levels of A-to-I RNA editing. oleh Sivan Osenberg, Nurit Paz Yaacov, Michal Safran, Sharon Moshkovitz, Ronit Shtrichman, Ofra Sherf, Jasmine Jacob-Hirsch, Gilmor Keshet, Ninette Amariglio, Joseph Itskovitz-Eldor, Gideon Rechavi