title: Photochemistry of porphyrins as studied by spin trapping and electron spin resonance.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D010782:Photolysis; D011166:Porphyrins / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D011166:Porphyrins