Plasma trimethylamine N-oxide (TMAO): associations with cognition, neuroimaging, and dementia by Yaqub, A, Vojinovic, D, Vernooij, MW, Slagboom, PE, Ghanbari, M, Beekman, M, van der Grond, J, Hankemeier, T, van Duijn, CM, Ikram, MA, Ahmad, S