Has anyone done an in-house verification of the reference range quoted by Roche for their new EPS method for the measurement of plasma amylase. I would be most grateful for any data. Best wishes Douglas Thompson Dr Douglas Thompson Department of Clinical Biochemistry and Immunology The General Infirmary Leeds, LS1 3EX Tel: 0113 3926503 Fax: 0113 2335672 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%