TTF-1 works on the Ventana if you retrieve-microwave-citrate-32 min 
incubation-key is a good thyroid control-try several-fresh cut

34be12 works well also use protease 1 -4min. 32 min incubation-also watch how 
old
slides are-we useprostate chips for control-these days they are in abundance

Good luck                          Dana Dittus
                                         Histology Supervisor
                                          Abington Memorial Hospital