W.J.G.MELCHERS,J.ZOLL,M.TESSARI,D.V.BAKHMUTOV, A.P.GMYL,V.I.AGOL,H.A.HEUS. A GCUA TETRANUCLEOTIDE LOOP FOUND IN THE POLIOVIRUS ORIL BY IN VIVO SELEX (UN)EXPECTEDLY FORMS A YNMG-LIKE STRUCTURE: EXTENDING THE YNMG FAMILY WITH GYYA.. RNA V. 12 1671 2006 ASTM RNARFU UK ISSN 1355-8382