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.
CCL21 expression in systemic sclerosis with associated pulmonary arterial hypertension from explanted lung tissue. CCL21 immunohistochemistry demonstrated protein expression (black arrows) from (A-C) airway epithelial cells (20x) and (D) alveolar macrophages (20x), which was confirmed by (E) CD68 macrophage marker in a serial cut of the same histopathology block.
