Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Diabetic retinopathy, illustrating the loss of pericytes and associated collapse of the vasculature. Copyright © 1988. Reprinted with permission from Klintworth GK. 1988. The eye. In: Rubin E, Farber JL (eds). Pathology. 2nd edn. Philadelphia: Lippincott, pp. 1456–83.
