About the Authors

Elisabet Witsø

elisabet.witso@gmail.com

Affiliation Norwegian Institute of Public Health, Oslo, Norway

German Tapia

Affiliation Norwegian Institute of Public Health, Oslo, Norway

Ondrej Cinek

Affiliation 2nd Faculty of Medicine, Charles University Prague, Prague, The Czech Republic

Flemming Michael Pociot

Affiliation Glostrup Research Institute, Glostrup, Denmark

Lars C. Stene

Affiliation Norwegian Institute of Public Health, Oslo, Norway

Kjersti S. Rønningen

Affiliation Oslo University Hospital, Rikshospitalet, Oslo, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EW LCS OC KSR FMP. Performed the experiments: GT OC EW. Analyzed the data: EW LCS. Contributed reagents/materials/analysis tools: EW OC KSR FMP. Wrote the paper: EW LCS OC KSR GT FMP.