From:Cathy Mayton

Hello Diane,
PMMA was used extensively in the papers written during the '90's.  In fact I used it in many of my early papers.  There was one paper I co-authored and I wrote MMA instead of PMMA and the co-author kept changing it back to PMMA.  I finally told him we were using MMA not PMMA.  PMMA is polymethly methacrylate and these are the protocols that use the MMA beads that are stirred into the solution making the medium honey consistancy.  This is very messy but maybe the blocks polymerize faster.  I only used the beads when I worked in Atlanta for about 9 months.  Anyway MMA and PMMA should not be used interchangably.
Take care,
"Quality Histology with a Personal Touch"
A GLP Compliant Laboratory
Cathy A. Mayton
Wasatch Histo Consultants, Inc.

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