Sources of testing error The Use and Abuse of Investigations When should you use tests? Sources of testing error http://www.pcsaonline.co.uk/wp-content/uploads/Recording-4.m4a Carraro P Plebani M . Errors in a stat laboratory: Types and frequencies 10 years later. Clin Chem. 2007;53:1338–1342. Previous Topic Back to Lesson Next Lesson