title: Electron nuclear double resonance studies on heme proteins: determination of the interaction of Fe 3+  with its ligand nitrogens in metmyoglobin.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D006418:Heme; D007093:Imidazoles; D007501:Iron; D009682:Magnetic Resonance Spectroscopy; D008433:Mathematics; D009211:Myoglobin; D009584:Nitrogen
chemical_list: D007093:Imidazoles; D009211:Myoglobin; D006418:Heme; D007501:Iron; D009584:Nitrogen