1. Bradley DW, Maynard JE, Webster H. Plasma and whole blood concentrations of ascorbic acid in patients undergoing long-term hemodialysis. Am J Clin Pathol 1973;60:145-7.
2. Sullivan JF, Eisenstein AB. Ascorbic acid depletion during hemodialysis. JAMA 1972;220:1697-9.
3. Tomson CR, Channon SM, Parkinson IS. Correction of subclinical ascorbate deficiency in patients receiving dialysis: effects on plasma oxalate, serum cholesterol, and capillary fragility. Clin Chim Acta 1989;180:255-64.
4. Cox BD, Butterfield WJ. Vitamin C supplements and diabetic cutaneous capillary fragility. Br Med J 1975;3:205.
5. Will JC, Byers T. Does diabetes mellitus increase the requirement for vitamin C? Nutr Rev 1996;54:193-202 [review].
6. Schorah CJ, Tormey WP, Brooks GH, et al. The effect of vitamin C supplements on body weight, serum proteins, and general health of an elderly population. Am J Clin Nutr 1981;34:871-6.
7. Schlebusch H, Kern D. Stabilization of collagen by polyphenols. Angiologica 1972;9:248-56 [in German].
8. Monboisse J, Braquet P, Randoux A, Borel J. Non-enzymatic degradation of acid-soluble calf skin collagen by superoxide ion: protective effect of flavonoids. Biochem Pharmacol 1983;32:53-8.
9. Lagrue G, Olivier-Martin F, Grillot A. A study of the effects of procyanidol oligomers on capillary resistance in hypertension and in certain nephropathies. Sem Hop 1981;57:1399-401 [in French].
10. Galley P, Thiollet M. A double-blind, placebo-controlled trial of a new veno-active flavonoid fraction (S 5682) in the treatment of symptomatic capillary fragility. Int Angiol 1993;12:69-72.
11. Bruneton J. Pharmacognosy Phytochemistry Medicinal Plants. Andover: Intercept Ltd., 1995, 277.
12. Schlebusch H, Kern D. Stabilization of collagen by polyphenols. Angiologica 1972;9:248-56 [in German].
13. Monboisse J, Braquet P, Randoux A, Borel J. Non-enzymatic degradation of acid-soluble calf skin collagen by superoxide ion: protective effect of flavonoids. Biochem Pharmacol 1983;32:53-8.
14. Lagrue G, Olivier-Martin F, Grillot A. A study of the effects of procyanidol oligomers on capillary resistance in hypertension and in certain nephropathies. Sem Hop 1981;57:1399-401 [in French].
15. Galley P, Thiollet M. A double-blind, placebo-controlled trial of a new veno-active flavonoid fraction (S 5682) in the treatment of symptomatic capillary fragility. Int Angiol 1993;12:69-72.
16. Bruneton J. Pharmacognosy Phytochemistry Medicinal Plants. Andover: Intercept Ltd., 1995, 277.