1Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
2National Institute for Environmental Studies, Ibaraki, Japan
3Department of Orthopedic Surgery, Juntendo University, Tokyo, Japan
4Department of Orthopedic Surgery, Kitasato University, Kanagawa, Japan
5Department of Orthopedic Surgery, Seirei Sakura Citizen Hospital, Chiba, Japan
6Department of Orthopedic Surgery, Zikei University, Tokyo, Japan
7Department of Orthopedic Surgery, Kitasato University, Kitasato Institute Hospital, Tokyo, Japan
8Department of Orthopedic Surgery, Saiseikai Chuo Hospital, Tokyo, Japan
9Tokyo Health Service Association, Tokyo, Japan
10Interfaculty Initiative in Information Studies, The University of Tokyo, Tokyo, Japan
11Division of Environmental and Occupational Health, Toho University, Tokyo, Japan
aE-mail address for Y. Nishiwaki: [email protected]
*Kota Watanabe, MD, and Takehiro Michikawa, MD, contributed equally to the writing of this work.
