dear Josie
Tab250 is a clone of cerb-2 I purchase from Zymed, and have used it for 4 
years, it only needs protease on the ventana system, correlated in-house very 
well for us with the Herceptin testing. We (as with all our ASR) antibodies 
refer to all the appropriate guidelines in reporting and have actually 
started to play with it slightly in correlation with Fish. I like it due to 
no tissue loss from microwaving or steam, morphology stays nice on slides.    
                        Dana