title: RNA aptamers.
authors.forename: H A
authors.initials: HA
authors.lastname: Heus
mesh_terms: D015195:Drug Design; D008024:Ligands; D009690:Nucleic Acid Conformation; D012313:RNA / Q000737:chemistry* / Q000378:metabolism; D013806:Theophylline / Q000032:analysis*
chemical_list: D008024:Ligands; D012313:RNA; D013806:Theophylline