1. Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 446-701, Republic of Korea
2. College of Pharmacy and MRC, Chungbuk National University, Cheongju 361-763, Republic of Korea
3. Department of Dermatology, Northern California Institute for Research and Education (NCIRE)-VA Medical Center, University of California, San Francisco (UCSF), San Francisco, California 94158, USA
4. Nova Southeastern College of Medicine, Fort Lauderdale, Florida 33314, USA