From: Nakashima Y, Fujii H, Sumiyoshi S, Wight TN, Sueishi K. Early human atherosclerosis: accumulation of lipid and proteoglycans in intimal thickenings followed by macrophage infiltration. Arteriosclerosis, thrombosis, and vascular biology 2007; 27(5):1159–1165. Arrowheads indicate internal elastic lamina. Reproduced with permission from the Publisher. Copyright © 2007, Wolters Kluwer Health.