title: Simplification of the proton magnetic resonance spectrum of ribonuclease by difference spectroscopy.
mesh_terms: D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D011522:Protons; D012260:Ribonucleases; D013057:Spectrum Analysis
chemical_list: D011522:Protons; D012260:Ribonucleases