Modes of covariation between vascular risk factors and cognition in cohorts with cultural and geographical variations oleh Bonnie Yin Ka Lam, Vincent Hui, Huijing Zheng, Yuan Cai, Ludovica Griffanti, Sana Suri, Klaus P. Ebmeier, Thomas E. Nichols, Vincent C.T. Mok, Heidi Johansen-Berg, Piergiorgio Salvan