title: AN ELECTRON SPIN RESONANCE STUDY OF COPPER UROPORPHYRIN 3 AND OTHER TOURACO FEATHER COMPONENTS.
mesh_terms: D000818:Animals; D001717:Birds; D002110:Caffeine; D055598:Chemical Phenomena; D002621:Chemistry; D003300:Copper; D004578:Electron Spin Resonance Spectroscopy; D005241:Feathers; D011166:Porphyrins; D012106:Research; D013057:Spectrum Analysis; D013805:Theobromine; D014578:Uroporphyrins
chemical_list: D011166:Porphyrins; D014578:Uroporphyrins; D002110:Caffeine; D003300:Copper; D013805:Theobromine
keywords: BIRDS; CAFFEINE; CHEMISTRY; COPPER; ELECTRON SPIN RESONANCE; EXPERIMENTAL LAB STUDY; FEATHERS; PORPHYRINS; SPECTRUM ANALYSIS; THEOBROMINE