Tom,
That would be difficult to estimate.  Your best source I would think would
be the antibody companies, how much product do they sell in the US?  This
would vary from site to site.  Universities and research facilities do a lot
more than big city private hospitals, and outlying areas may do none at all.
I would ask some of the main players (DAKO, Ventana, Sigma, ETC.) about how
much product they sell in the USA.  What is this for?
Patsy Ruegg 

		-----Original Message-----
		From:	Tom Kuwahara [mailto:tom@adpath.com]
		Sent:	Monday, June 14, 1999 8:39 AM
		To:	HistoNet Server
		Subject:	Amount of IHC performed in USA

		Dear Histonetters:  Is there anyone out there who could
point me toward
		a source, person, expert, website, etc.,that could give me
an estimate
		on how much IHC is done in the US per year?  Patsy Ruegg,
would you have
		an idea?  Thanks in advance for any advice you can give me.
Regards,
		Tom
		-- 
		******************************* 
		Thomas J. Kuwahara
		Senior Immunohistochemist
		Advanced Pathology Systems 
		3801 Sacramento St. suite 621 
		San Francisco, CA 94118 
		415 750 6800 x23067 tel 
		415 750 2332 fax 
		tom@adpath.com