I have a bad immunohistochemistry reaction. 

Please, Who can me explain the appearance of non specific brown DAB reaction in the tissue edges of my section? 



Dr. Hernán J. Aldana Marcos
Facultad de Medicina. Universidad de Morón
Machado 914. B1708JPD. Buenos Aires. Argentina 
e-mail alternativo hernanjavier@yahoo.com
web: http://hjaldanamarcos.bravepages.com
http://histologia.bigthicketdirectory.net/main.html

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