Cognitive and biological effects of citrus phytochemicals in subjective cognitive decline: a 36-week, randomized, placebo-controlled trial oleh Samantha Galluzzi, Roberta Zanardini, Clarissa Ferrari, Sara Gipponi, Ilaria Passeggia, Michela Rampini, Giovanni Sgrò, Salvatore Genovese, Serena Fiorito, Lucia Palumbo, Michela Pievani, Giovanni B. Frisoni, Francesco Epifano