title: The role of microwave frequency in EPR spectroscopy of copper complexes.
mesh_terms: D003300:Copper / Q000032:analysis*; D004295:Dihydroxyphenylalanine / Q000032:analysis; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D008872:Microwaves; D014168:Transferrin / Q000032:analysis
chemical_list: D014168:Transferrin; D004295:Dihydroxyphenylalanine; D003300:Copper