title: Electron spin resonance studies on aqueous methylene blue solutions.
mesh_terms: D011232:Chemical Precipitation; D004396:Coloring Agents; D004578:Electron Spin Resonance Spectroscopy; D006863:Hydrogen-Ion Concentration; D008751:Methylene Blue; D010775:Photic Stimulation; D012996:Solutions
chemical_list: D004396:Coloring Agents; D012996:Solutions; D008751:Methylene Blue