About the Authors

Tone Kofstad

Affiliation Department of Laboratory Services, National Veterinary Institute, Oslo, Norway

Christine M. Jonassen

cjon@ahus.no

Affiliations Department of Laboratory Services, National Veterinary Institute, Oslo, Norway, Division for Diagnostics and Technology, Akershus University Hospital, Lørenskog, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CMJ. Performed the experiments: TK. Analyzed the data: TK. Wrote the paper: TJ CMJ.