Metformin, but not glimepiride, improves carotid artery diameter and blood flow in patients with type 2 diabetes mellitus - Machado, Helena Atroch; Vieira, Marcelo; Cunha, Maria Rosaria; Correia, Marcia Regina Soares; Fukui, Rosa Tsunechiro; Santos, Rosa Ferreira dos; Rocha, Dalva Marreiro; Wajchenberg, Bernardo Leo; Lage, Silvia Helena Gelas; Silva, Maria Elizabeth Rossi da (Clinics, 2012)