Author response: Neuropsychiatric symptoms predict hypometabolism in preclinical Alzheimer disease. (31st October 2017) - Gauthier, Serge; Ng, Kok Pin; Pascoal, Tharick A.; Mathotaarachchi, Sulantha; Chung, Chang-Oh; Benedetti, Andréa L.; Shin, Monica; Kang, Min Su; Li, Xiaofeng; Ba, Maowen; Kandiah, Nagaendran; Rosa-Neto, Pedro