<P>We have never used the stain, but the neurologists and neuropathologists around here understand that the method must be used on fresh tissue. Wish I could be of more assistance. Good luck.</P>
<P> </P><BR><BR>Shelley K. Sheridan<br>Research Specialist<br>Center for Neurodegenerative Disease Research<br>University of Pennsylvania Medical School<br>Philadelphia, PA 19104<br>Phone:(215)614-0051
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