F.LI,P.S.PALLAN,M.A.MAIER,K.G.RAJEEV,S.L.MATHIEU, C.KREUTZ,Y.FAN,J.SANGHVI,R.MICURA,E.ROZNERS, M.MANOHARAN,M.EGLI. CRYSTAL STRUCTURE, STABILITY AND IN VITRO RNAI ACTIVITY OF OLIGORIBONUCLEOTIDES CONTAINING THE RIBO-DIFLUOROTOLUYL NUCLEOTIDE: INSIGHTS INTO SUBSTRATE REQUIREMENTS BY THE HUMAN RISC AGO2 ENZYME.. NUCLEIC ACIDS RES. V. 35 6424 2007 ASTM NARHAD UK ISSN 0305-1048