Hi, Has someone tried an antibody that would detect CD31 on mouse tissues using 10% NBF and not Zinc formalin? Thanks, Lizbeth Kelly, HT(ASCP), Q-IHC Histology Department Human Genome Sciences, Inc. 14200 Shady Grove Road Rockville, MD 20850 240-314-4400 X2325 Fax: 301-354-4176