title: Chemistry of bleomycin. XXIII. Natural abundance 15N-NMR spectroscopic evidence for the structure of bleomycin.
mesh_terms: D001761:Bleomycin; D055598:Chemical Phenomena; D002621:Chemistry; D009682:Magnetic Resonance Spectroscopy; D009587:Nitrogen Isotopes
chemical_list: D009587:Nitrogen Isotopes; D001761:Bleomycin