References
- Roe , J. H. 1954 . Methods of Biochemical Analysis , Edited by: Glick , D. Vol. 1 , 115 – 139 . New York : Interscience Pub. Inc. .
- The Association of Vitamin Chemists, Inc. 1966 . Methods of Vitamin Assay , 287 – 344 . New York : Interscience Pub. Inc. .
- Omaye , S. T. , Turnbull , J. D. and Sauberlich , H. E. 1979 . Methods in Enzymology , Edited by: McCormick , D. B. and Wright , L. D. Vol. 62 , 3 – 11 . New York : Academic Press Inc. .
- Roe , J. H. and Oesterling , M. J. 1944 . J. Biol. Chem. , 152 : 511 – 517 .
- Okamura , M. 1980 . Clin. Chim. Acta , 103 : 259 – 268 .
- Pachla , L. A. and Kissinger , P. T. 1979 . Methods in Enzymology , Edited by: McCormick , D. B. and Wright , L. D. Vol. 62 , 15 – 24 . New York : Academic Press Inc. .
- Lam , K. W. and Lee , P. F. 1975 . Invest. Ophthalmol. , 14 : 947 – 950 .
- Deutsch , M. J. and Weeks , C. E. 1965 . J.A. O.A.C. , 48 : 1248 – 1256 .
- Lowry , O. H. , López , J. A. and Bessey , O. A. 1945 . J. Biol. Chem. , 160 : 609 – 615 .
- Pelletier , O. 1958 . J. Lab. Clin. Med. , 72 : 674 – 678 .
- Roe , J. H. 1961 . Ann. N.Y. Acad. Sci. , 92 : 277 – 283 .
- Mapson , L. W. 1961 . Ann. N.Y. Acad. Sci. , 92 : 284 – 285 .