1. Blincoe, C., and D. W. Marble. 1985. Storage stability of some bovine plasma enzymes. Am. J. Vet. Res.46:1242-1244.
2. DiMagno, E. P., D. Corle, J. F. O'Brien, I. J. Masnyk, and R. Aamodt. 1989. Effect of long-term freezer storage, thawing, and refreezing on selected constituents of serum. Mayo Clin. Proc.64:1226-1234.
3. Palombo, J. D., B. R. Bistrian, and G. L. Blackburn. 1987. Radioimmunoassay of apolipoprotein A-1 in serum and EDTA plasma, and effects of freeze-thaw cycles. Clin. Chem.33:308.
4. Paul J. R. and C. White. (ed.). 1973. Serologic epidemiology. Academic Press New York N.Y.
5. Petrakis, N. L. 1985. Biologic banking in cohort studies, with special reference to blood. NCI Monogr.67:193-198.