FEMA: fast and efficient mixed-effects algorithm for large sample whole-brain imaging data by Parekh, P, Fan, CC, Frei, O, Palmer, CE, Smith, DM, Makowski, C, Iversen, JR, Pecheva, D, Holland, D, Loughnan, R, Nedelec, P, Thompson, WK, Hagler, DJ, Andreassen, OA, Jernigan, TL, Nichols, TE, Dale, AM