Analysis of the alteration in the optical configuration of Raman spectrometer: Optimization of signal-to-noise ratio (SNR) in a specific wavelength range of clinical interest - Lázaro, João Carlos; de Lima, Carlos J.; Moreira, Leonardo M.; Silveira Jr., Landulfo; da Silveira, Nelson J. F.; Villaverde, Antonio Balbin; Pacheco, Marcos Tadeu T. (Spectroscopy, 2008)