title: NMR evidence for self-association of theophylline in aqueous solution.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003903:Deuterium; D007259:Infrared Rays; D009682:Magnetic Resonance Spectroscopy; D013806:Theophylline
chemical_list: D003903:Deuterium; D013806:Theophylline