Diagnosis of atherosclerosis in human carotid artery by Ft-Raman spectroscopy:: principal component analysis algorithm - Nogueira, Grazielle V.; Silveira Junior, Landulfo; Martin, Airton A.; Zângaro, Renato A.; Pacheco, Marcos Tadeu T.; Chavantes, Maria Cristina; Zampieri, Marcelo; Pasqualucci, Carlos Augusto Gonçalves (Proceedings of Society of Photo-Optical Instrumentation Engineers, 2005)