About the Authors

Jing Liu-Helmersson

Jing.Helmersson@umu.se

Affiliation Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden

Hans Stenlund

Affiliation Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden

Annelies Wilder-Smith

Affiliations Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore

Joacim Rocklöv

Affiliation Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JR. Performed the experiments: JLH. Analyzed the data: JLH HS JR. Contributed reagents/materials/analysis tools: HS. Wrote the paper: JLH JR AWS.