Source:http://linkedlifedata.com/resource/umls/id/C0436196
CSP: determination of the wavelengths or frequencies of the lines in a spectrum.,NCI: A class of analytical techniques used to measure certain physical properties such as energy, mass and wavelength via the dispersion of radiant energy or particles into a spectrum.,MSH: The use of spectrographic techniques for deriving the physical constants of materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)