About the Authors

Richard Nordenvall

richard.nordenvall@ki.se

Affiliations Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden, Department of Orthopedics, Karolinska University Hospital, Stockholm, Sweden

Shahram Bahmanyar

Affiliations Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, Center for Pharmacoepidemiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran

Johanna Adami

Affiliation Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden

Ville M. Mattila

Affiliations Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden, Department of Orthopedics, Karolinska University Hospital, Stockholm, Sweden, Department of Orthopedics and Trauma Surgery, University Hospital of Tampere, Tampere, Finland

Li Felländer-Tsai

Affiliations Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden, Department of Orthopedics, Karolinska University Hospital, Stockholm, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RN LT SB JA VM. Performed the experiments: RN SB. Analyzed the data: RN LT SB. Contributed reagents/materials/analysis tools: RN LT SB JA VM. Wrote the paper: RN LT SB JA VM.