title: RxNav: a progress report.
authors.affiliation: U.S. National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Kelly
authors.initials: K
authors.lastname: Zeng
authors.forename: Olivier
authors.initials: O
authors.lastname: Bodenreider
authors.forename: Stuart J
authors.initials: SJ
authors.lastname: Nelson
mesh_terms: D019992:Databases as Topic; D006801:Humans; D004364:Pharmaceutical Preparations; D012984:Software
chemical_list: D004364:Pharmaceutical Preparations