AbellL. L.LeveyB. B.BrodieB. B.KendallF. E.A simplified method for the estimation of total cholesterol in serum and demonstration of its specificity. J. biol. Chem.195 (1952) 357.
2.
AnnanW.IsherwoodD. M.Automated method for the direct determination of total serum cholesterol. J. tried. Lab. Technol.26 (1969) 202.
3.
BarnettR. N.CashA. D.JunghansS. P.Performance of ‘kits’ used for clinical chemical analysis of cholesterol. New Engl. J. Med.279 (1968) 974.
4.
BlockW. D.JarrettK. J.Jr.LevineJ. B.Improved automated determination of serum total cholesterol with a single colour reagent. Clin. Chem.12 (1966) 681.
5.
BlomhoffJ. P.Serum cholesterol determination by gas liquid chromatography. Clin. chim. Acta, 43 (1973) 257.
6.
BrownW. D.Errors in the determination of serum cholesterol. Aust. J. expt. Biol.39 (1961a) 209.
7.
BrownW. D.The reliability of methods for cholesterol determination in studies of coronary disease. Med. J. Aust.48 (1961b) 467.
8.
Center for Disease Control. Notes on the analysis of serum cholesterol. (Fourth Monograph for CDC Proficiency Testing Program). Atlanta, 1970.
9.
CooperG. R.Valid chemical laboratory services. Ann. N. Y. Acad. Sci.126 (1965) 841.
10.
CopelandB. E.RosenbaumJ. M.Organisation, planning and results of the Massachusetts Society of Pathologists Regional Quality Control Program. Amer. J. clin. Path.57 (1972a) 676.
11.
CopelandB. E.SkendzelL. P.BarnettR. N.Inter-laboratory comparison of University Hospital Referee Laboratories and Community Hospital Laboratories using results of the 1968 College of American Pathologists Clinical Chemistry Survey. Amer. J. clin. Path.58 (1972b) 281.
12.
CrowleyL. V.AltonM. Evaluation of a chemistry kit system: Comparison of the performances of trained and untrained persons. Amer. J. clin. Path.56 (1971) 636.
13.
DriscollJ. L.AubuchonD.DescoteauxM.MartinH. F.Semiautomated specific routine serum cholesterol determination by gas liquid chromatography. Anal. Chem.43 (1971) 1196.
14.
EasonW. D.Evaluation of cholesterol kits. New Engl. J. Med.280 (1969) 449.
15.
FasceC. F.VanderlindeR. E.Factors affecting the results of serum cholesterol determinations: An inter-laboratory comparison. Clin. Chem.18 (1972) 901.
16.
FengH.-W.PiC.-M.WangR.-B.ChenL.-C.Use of ferric ammonium sulphate in serum cholesterol determination. Clin. Chem.19 (1973) 121.
17.
FosbrookeA. S.PringleG. A.Improved precision for the AutoAnalyzer determination of serum cholesterol. Clin. chim. Acta, 30 (1970) 47.
18.
FraneyR. J.AmadorE. Serum cholesterol measurement based on ethanol extraction and ferric chloride-sulphuric acid. Clin. chim. Acta, 21 (1968) 255.
GilbertR. K.Analysis of results of the 1969 Comprehensive Chemistry Survey of the College of American Pathologists. Amer. J. clin. Path.54 (1970) 463.
21.
GlickJ. H.TimberlakeJ. W.An evaluation of the Unitest system based on comparison with clinical laboratory methods. Amer. J. clin. Pathol.53 (1970) 315.
22.
GodseD. D.LyallW. G. L.StancerH. C.Continuous in vivo monitoring of human plasma cholesterol. Clin. chim. Acta, 26 (1969) 89.
HolubW. R.GalliF. A.Automated direct method for measurement of serum cholesterol with use of primary standards and a stable reagent. Clin. Chem.18 (1972) 239.
25.
van der HoningJ.SaarlosC. C.StipJ. Method for fully automated determination of total cholesterol in blood serum, including saponification and extraction. Clin. Chem.14 (1968) 960.
26.
JungD. H.ParekhA. C.A new color reaction for cholesterol assay. Clin. chim. Acta, 35 (1971) 73.
27.
KendallF. Biochemical Measurements in Epidemiology of Cardiovascular Diseases—Methodology. Amer. J. Public Health50 (supp.) (1960) 67.
28.
KennyA. P.JamiesonA. Automated method for the direct determination of serum cholesterol. Clin. chim. Acta, 10 (1964) 536.
29.
KrynskiI. A.LoganJ. E.Observations on diagnostic kits for the determination of total cholesterol. Clin. Biochem.2 (1968) 105.
30.
LevineJ.MorgensternS.VlastelicaD. A direct Liebermann-Burchard method for serum cholesterol. Automation in Analytical Chemistry (Technicon Symposia), 1 (1967) 25.
31.
LevineJ. B.ZakB. Automated determination of serum total cholesterol. Clin. chim. Acta, 10 (1964) 381.
LoganJ. E.SunderlandM. L. E.Assessment of two blood-analyzer systems intended for diagnostic testing in the physician's office. Clin. Chem.16 (1970) 990.
34.
LyallW. A. L.StancerH. C.FerrariA. Continuous analysis for cholesterol in whole blood by continuous agglutination. Automation in Analytical Chemistry (Technicon Symposia), 1 (1966) 503.
35.
MolineC.BarronE. J.Effect of bilirubin and lipaemia on an automated method for serum cholesterol. Clin. Chem.15 (1969) 521.
36.
MuellingR. J.CopelandB. E.Selection of criteria for pure cholesterol preparations to be used for standardising cholesterol measurements for medical diagnosis and therapy. Amer. J. clin. Path.47 (1967) 654.
37.
NakaH. Application of serum cholesterol determination with o-phthalaldehyde reagent to the Vickers M-300 automated biochemical analysis system. Clin. chim. Acta, 42 (1972) 193.
38.
NeillD. W.RosalkiS. B.WildingP. Survey of the use of kits in British clinical laboratories (1973). In preparation.
39.
ParekhA. C.JungD. H.Cholesterol determination with ferric acetate-uranium acetate and sulphuric acid-ferrous sulphate reagents. Anal. Chem.42 (1970) 1423.
RichardsonR. W.SetchellD. D. R.WoodmanD. D.An improved procedure for the estimation of serum cholesterol. Clin. chim. Acta, 31 (1971) 403.
42.
RichardsonR. W.SetchellK. D. R.WoodmanD. D.Estimation of the ‘normal range’ for serum cholesterol by different methods. Clin. chim. Acta, 37 (1972) 305.
43.
RichmondW. The development of an enzymic technique for the assay of cholesterol in biological fluids. Scan. J. clin. Lab. Invest.29, supp. 126 (1972) abstract 3.25.
44.
RobertsonG.CrampD. G.Evaluation of cholesterol determination in serum and serum lipoprotein fractions by a semiautomated fluorimetric method. J. clin. Path.23 (1970) 243.
45.
SiegelA. L.BowdoinB. C.Modification of an automated procedure for serum cholesterol which permits the quantitative estimation of cholesterol esters. Clin. Chem.17 (1971) 229.
46.
SkendzelL. P.HansonD. J.CivinW. H.The 1949 College of American Pathologists Survey revisited. Amer. J. clin. Path.54 (1970) 493.
47.
StrømmeJ. H.EldjarnL. Surveys of the routine work of clinical chemical laboratories in 116 Scandinavian hospitals. Scan. J. clin. Lab. Invest.25 (1970) 213.
48.
StrømmeJ. H.SommerfeltS. C.EldjarnL. Improved performance of clinical laboratories as demonstrated by inter-hospital surveys in Norway from 1963 to 1969. Ann. clin. Biochem.6 (1969) 134.
49.
SunderlandM. L. E.KimE.K.LoganJ. E.An assessment of the Clay Adams Accu-Stat blood chemistry system. Clin. Biochem.5 (1972) 186.
50.
TonksD. B.Estimation of cholesterol in serum; classification and critical review of methods. Clin. Biochem.1 (1967) 12.
51.
TrinderP. A simple turbidimetric method for the determination of serum cholesterol. Ann. clin. Biochem.6 (1969) 165.
52.
TroyR. J.PurdyW. C.The coulometric determination of cholesterol in serum. Clin. chim. Acta, 26 (1969) 155.
53.
VanzettiG. Méthodes photométriques de dosage du cholesterol dans le sérum. Clin. chim. Acta, 10 (1964) 389.
54.
WenkR. E.Cholesterol in a regional program—reduction of interlaboratory variability by correcting systematic bias. Amer. J. clin. Pathol.55 (1971) 311.
55.
WhiteheadT. P.BrowningD. M.GregoryA. A comparative survey of the results of analyses of blood serum in clinical chemistry laboratories in the United Kingdom. J. clin. Pathol.26 (1973) 435.
56.
WilliamsJ. H.KuchmakM.WitterR. E.Evaluation of the purity of cholesterol primary standards. Clin. Chem.16 (1970) 423.
57.
WilsonS. S.GuillanR. A.HockerE. V.Studies on the stability of 18 chemical constituents of human serum. Clin. Chem.18 (1972) 1498.
58.
WybengaD. R.PileggiV. J.DirstineP. H.Di GiorgioJ. Direct manual determination of serum total cholesterol with a single stable reagent. Clin. Chem.16 (1970) 980.
59.
ZakB. Total and free cholesterol. Stan. Meth. clin. Chem.5 (1965) 79.
60.
ZakB.WeinerL. M.WelshB. Spectrophotometric study of bilirubin interference in the Huang reaction for cholesterol. Clin. chim. Acta, 30 (1970) 697.
61.
ZlatkisA.ZakB. Study of a new cholesterol reagent. Anal. Biochem.29 (1969) 143.