title: New NIH study. National Institutes of Health.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D005782:Gels; D015658:HIV Infections / Q000150:complications*; D006801:Humans; D009316:National Institutes of Health (U.S.); D018579:Patient Selection; D013281:Stomatitis, Aphthous / Q000188:drug therapy*; D014481:United States
chemical_list: D005782:Gels