Abdominal obesity and lower gray matter volume: a Mendelian randomization study. Debette, S.; Wolf, C.; Lambert, J. C.; Crivello, F.; Soumare, A.; Zhu, Y. C.; Schilling, S.; Dufouil, C.; Mazoyer, B.; Amouyel, P.; Tzourio, C.; Elbaz, A.. Neurobiol Aging.. 2014; 378-86: p.378-86Article