Impact of Intensive Glucose Control on Brain Health : Meta-Analysis of Cumulative Data from 16,584 Patients with Type 2 Diabetes Mellitus - Tang, Xingyao (Capital Medical University. Beijing Tongren Hospital) ; Cardoso, Marly A. (University of Sao Paulo. Department of Nutrition, School of Public Health) ; Yang, Jinkui (Capital Medical University. Department of Endocrinology, Beijing Tongren Hospital) ; Zhou, Jian-Bo (Capital Medical University. Department of Endocrinology, Beijing Tongren Hospital) ; Simó Canonge, Rafael (Universitat Autònoma de Barcelona. Departament de Medicina)