4Harkins R. Managing the pre- and post-analytical phases of the total testing process. Ann Lab Med,2012,32: 5-16.
5International Organization for Standardization. ISO 15189 : 2007.
6Medical Laboratories. Particular requirements for quality and competence. Geneva : IS0,2007.
7CAP Commission on Laboratory Accreditation-Laboratory Accreditation Program. Laboratory General Checklist. Northfield, IL : College of American Pathologists ,2011.