Potent inhibition of HIV-1 replication in vivo by a novel inhibitor of HIV-1 fusion: Michael A. Ussery, Owen L. Wood, Dennis D. Broud, Matthew A. Bacho, Steven C. Kunder, Susan F. Papermaster, Dennis M. Lambert1, Shawn Barney1, and Paul L. Black. U.S.F.D.A., Rockville, MD, and 1Trimeris, Inc., Research Triangle Park, NC, USA