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Volume 17, Issue 4 , Pages 315-321 , April 2001

Japanese fermented soybean food as the major determinant of the large geographic difference in circulating levels of vitamin K2: possible implications for hip-fracture risk

Masao Kaneki, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Stephen J. Hedges, PhD
- Department of Human Metabolism and Clinical Biochemistry, Clinical Science Center, Northern General Hospital, University of Sheffield, Sheffield, UK
Takayuki Hosoi, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Saeko Fujiwara, MD
- Department of Clinical Studies, Radiation Effects Research Foundation, Hiroshima, Japan
Anthony Lyons, FRCSEd
- Department of Orthopaedic and Accident Surgery, University Hospital, Queen’s Medical Centre, Nottingham, UK
St.John Crean, MBBS, FDSRCS
- Department of Oral and Maxillofacial Surgery, Eastman Dental Institute, London, UK
Nobuhiko Ishida, MD
- Umezono Hospital, Tokyo, Japan
Mamoru Nakagawa, BA
- Sekisui Chemical Co., Ltd., Osaka, Japan
Masahiro Takechi, BA
- Sekisui Chemical Co., Ltd., Osaka, Japan
Yoshihisa Sano, PhD
- Drug Metabolism & Pharmacokinetcs, Eisai Co., Ltd., Ibaraki, Japan
Yuzo Mizuno, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Shinjiro Hoshino, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Mariko Miyao, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Satoshi Inoue, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Kiyomi Horiki, MSc
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Masataka Shiraki, MD
- Research Institute and Practice for Involutional Diseases, Nagano, Japan
Yasuyoshi Ouchi, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Hajime Orimo, MD
- Department of Geriatric Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
- Correspondence to: Takayuki Hosoi, MD, PhD, Endocrinology Section, Tokyo Metropolitan Geriatric Center, 35-2, Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan