title: Optical and magnetic measurements of horseradish peroxidase. 3. Electron paramagnetic resonance studies at liquid-hydrogen and -helium temperatures.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003080:Cold Temperature; D004578:Electron Spin Resonance Spectroscopy; D006371:Helium; D006859:Hydrogen; D006863:Hydrogen-Ion Concentration; D008280:Magnetics; D010544:Peroxidases; D010944:Plants / Q000201:enzymology*; D013053:Spectrophotometry
chemical_list: D006371:Helium; D006859:Hydrogen; D010544:Peroxidases