The distribution of multimerin in normal blood vessels. Frozen sections of normal tissue, including aorta (A and B), small bowel (C), placenta (D and E), carotid artery (F), and umbilical cord (G; vein is shown) were immunolabeled with monoclonal antimultimerin (B, C, D, F, and G), polyclonal anti-multimerin (E), or the preimmune polyclonal antiserum (A). Bars indicate 30 μm (C and G) and 10 μm (A, B, D, E, and F).