Saw this on slashdot:
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http://www.elpj.com/welcome.html
I wonder if you can scratch with these...
Alex Reynolds
SAS Computing / Biology
University of Pennsylvania
Philadelphia, PA 19104-6228
V +1 215 573.2818 / F +1 215 898.8780
http://www.sas.upenn.edu/~reynolda/
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