Greetings, Histonet. I anyone running paraffin IHC with these Abs for human colo-rectal ca successfully on the Ventana Benchmark, and if so, which clone, vendor, dilution, etc. Thanks in advance, Diana Goodwin Supervisor, Anatomic Pathology Pennsylvania Hospital, Preston 655-C ph: 215-829-6532 fax: 215-829-7564 e-mail: goodwind <@t> pahosp.com