5Indian Clinic Biochemical. Stability of lyophilized human serum for use as quality control material in Bhutan [ J ]. 2013, 28(4) :18 -21.
6Westgard J 0, Westgard S A. The quality of laboratory testing today: an Assessment of sigma metrics for analytic quality using performance data from proficiency testing surveys and the CLIA criteria for acceptable performance [ J ]. Am J Clinical Pathol,2006,125 ( 3 ) : 343 - 354.
7Westgard J O. Managing quality and measuring uncertain- ty in the medical laboratory [ J ]. Clinical Chemistry Lab Med, 2010,48 ( 1 ) :31 -40.
8ISO 15189:2012. Medical laboratories - requirements for quality and competence. Geneva, Switzerland : International Organization for Standardization, 2012.
9Fraser CG, Hyltoft Petersen P, Libeer J-C, et al. Proposal for setting generally applicable quality goals solely based on biology [J]. Ann Clin Biochem, 1997, 34(Pt 1) :8-12.
10Plebani M, Seiacovelli L, Aita A, et al. Performance criteria and quality indicators for the pre-analytieal phase [ J 1. Clin Chem Lab Med, 2015, 53(6) : 943-948.
