Affiliation: | (1) Division of Pharmaceutics, School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, 27599;(2) Present address: Pharmaceutical Division, Biotechnology, Bayer Corporation, 800 Dwight Way, Berkeley, California, 94710;(3) Inhalation Product Development, GlaxoWellcome Inc., RTP, North Carolina, 27709;(4) Cystic Fibrosis Pulmonary Research and Treatment Center, University of North Carolina, Chapel Hill, North Carolina, 27599 |