1. Department of Food & Nutrition, Seoul Women's University, Seoul 139-774, Korea.
2. Department of Nutrition Services, Gangnam Severance Hospital, Seoul 135-720, Korea.
3. Division of Nursing, Gangnam Severance Hospital, Seoul 135-720, Korea.
4. Department of Nuclear Medicine, College of Medicine, Yonsei University, Seoul 120-479, Korea.
5. Department of Surgery, College of Medicine, Yonsei University & Thyroid Cancer Center, Gangnam Severance Hospital, Seoul 120-749, Korea.