ESR	Erythrocyte Sedimentation Rate
ICSH	International Council for Standardization in Haematology
CLSI	Clinical and Laboratory Standards Institute
EDTA	Ethylenediaminetetraacetic Acid
RCPA	Royal College of Pathologists of Australasia
IQR	Interquartile Range
LoA	Limits of Agreement
CI	Confidence Interval
TEa	Allowable Total Error
DAS28	Disease Activity Score 28
RA	Rheumatoid Arthritis
ACR	American College of Rheumatology
EULAR	European League Against Rheumatism
IQC	Internal Quality Control
AAB MLE	American Association of Bioanalysts Molecular Laboratory Evaluation
PB	Passing–Bablok
r	Pearson Correlation Coefficient
SD	Standard Deviation