1Healy MJ.Outliers in clinical chemistry quality-control schemes.Clin Chem,1979,25:675-677.
2Moller J,Loikkanen M.Detection of outliers in the results of external quality assessment.EQAnews,2000,11:172-176.
3Thienpont LM,Steyaert HL,De Leenheer AP.A modified statistical approach for the detection of outlying values in external quality control:comparison with other techniques.Clin Chim Acta,1987,168:337-346.
4Horn PS,Pesce AJ,Copeland BE.Reference interval computation using robust vs parametric and nonparametric analyses.Clin Chem,1999,45:2284-2285.
5Solberg HE,Lahti A.Detection of outliers in reference distributions:performance of Horn's algorithm.Clin Chem,2005,51:2326-2332.
6Horn PS,Feng L,Li Y,et al.Effect of outliers and nonhealthy individuals on reference interval estimation.Clin Chem,2001,47:2137-2145.