[1] Univ Minnesota, Dept Biochem Mol Biol & Biophys, Minneapolis, MN 55455 USA
[2] Univ Texas Med Branch Galveston, Dept Biochem & Mol Biol, Galveston, TX 77550 USA
[3] Max Planck Inst Dev Biol, Dept Biochem, D-72076 Tubingen, Germany
[4] Univ Michigan, Dept Biol Chem, Ann Arbor, MI 48109 USA
[5] Emory Univ, Dept Biochem Engn, Atlanta, GA 30322 USA
[6] Natl Yang Ming Univ, Inst Biochem & Mol Biol, Taipei 11221, Taiwan
[7] Rockefeller Univ, Lab Retrovirol, New York, NY 10065 USA
[8] NCI, Messenger RNA Regulat & Decay Sect, RNA Biol Lab, Ctr Canc Res, Frederick, MD 21702 USA