Synaptic density in healthy human aging is not influenced by age or sex: a 11C-UCB-J PET study. - Laura Michiels; Aline Delva; June van Aalst; Jenny Ceccarini; Wim Vandenberghe; Mathieu Vandenbulcke; Michel Koole; Robin Lemmens; Koen Van Laere (NeuroImage, 2021)