1. Ultraviolet radiation-induced oxidative stress in cultured human skin fibroblast and antioxidant protection;Gouchang;Biol Res Rep Univ Jyvaskyla,1993
2. Pycnogenol, the powerful antioxidant;Passwater,1992
3. The benefits of pycnogenol;Passwater,1994
4. Hydroxyl and superoxide anion radical scavenging activities of natural source antioxidants using the computerized JES-FR30 ESR spectrometer system;Noda;Biochem Mol Biol Int,1997
5. Pycnogenol enhances endothelial cell antioxidant defenses;Wei;Redox Rep,1997