Analysis of the posterior cingulate cortex with [ 18 F]FDG-PET and Naa/mI in mild cognitive impairment and Alzheimer's disease: Correlations and differences between the two methods oleh Artur M.N. Coutinho, Fábio H.G. Porto, Poliana F. Zampieri, Maria C. Otaduy, Tíbor R. Perroco, Maira O. Oliveira, Rafael F. Nunes, Toulouse Leusin Pinheiro, Cassio M.C. Bottino, Claudia C. Leite, Carlos A. Buchpiguel