3National Committee of Clinical Laboratory Standard. Evaluation of the linearity of quantitative measurement procedures: a statistical approach. Approved guideline. NCCLS document EP6-A. Wayne,Pennsylvania : NCCLS ,2003.1-100.
4Tholen DW. Evaluation of linearity, using the newly approved NCCLS EP6-A protocol. Clin Lab News, 2004, 30:10-12.
5Tholen DW. Alternative statistical techniques to evaluate linearity.Arch Pathol Lab Med, 1992, 116:746-756.
6Kroll MH, Emancipator K. A theoretical evaluation of linearity. Clin Chem, 1993, 39:405-413.
7Krouwer JS, Sehlain B. A method to quantify deviations from assay linearity. Clin Chem, 1993, 39:1689-1693.
8Emancipator K, Kroll MH. A quantitative measure of nonlinearity.Clin Chem, 1993,39:766-772.
9Kroll MH, Pmestgaard J, Michaliszyn E, et al. Evaluation of the extent of nonlinearity in reportable range studies. Arch Pathol Lab Med, 2000, 124:1331-1338.
10Jhang JS, Chang CC, Fink DJ. Evaluation of linearity in the clinical laboratory. Arch Pathol Lab Med, 2004, 128:44-48.
