RT Journal Article SR Electronic T1 Vertebrate MicroRNA Genes JF Science JO Science FD American Association for the Advancement of Science SP 1540 OP 1540 DO 10.1126/science.1080372 VO 299 IS 5612 A1 Lim, Lee P. A1 Glasner, Margaret E. A1 Yekta, Soraya A1 Burge, Christopher B. A1 Bartel, David P. YR 2003 UL http://science.sciencemag.org/content/299/5612/1540.abstract AB