PPD-is it available freely for research purpose.
dheen at SDF.LONESTAR.ORG
Fri Sep 24 14:33:32 EST 1999
I would like receive information or details on the availability of PPD
(purified protein derivative of M.tuberculosis) for research only. If you
know some site to contact or the address, please forward to me. Whether
PPD is also available commercially? If yes can you please say the address
of the company.
dheen at sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org
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