Vascular calcification and aortic fibrosis: a bifunctional role for osteopontin in diabetic arteriosclerosis - Shao, J S; Sierra, O L; Cohen, R; Mecham, R P; Kovacs, A; Wang, J; Distelhorst, K; Behrmann, A; Halstead, L R; Towler, D A (Arterioscler Thromb Vasc Biol, 2011)