About the Authors

Torkil Benterud

Torkil.Benterud@rr-research.no; torkilben@yahoo.no

Affiliation Dept of Pediatric Research, Oslo University Hospital, Oslo, Norway

Leonid Pankratov

Affiliation Dept of Pediatric Research, Oslo University Hospital, Oslo, Norway

Rønnaug Solberg

Affiliation Dept of Pediatric Research, Oslo University Hospital, Oslo, Norway

Nils Bolstad

Affiliation Dept of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

Anders Skinningsrud

Affiliation Dept Multidisciplinary Lab Med & Med Biochem, Akershus Univ Hosp, Lørenskog, Norway

Lars Baumbusch

Affiliation Dept of Pediatric Research, Oslo University Hospital, Oslo, Norway

Leiv Sandvik

Affiliation Dept of Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway

Ola Didrik Saugstad

Affiliation Dept of Pediatric Research, Oslo University Hospital, Oslo, Norway

Competing Interests

Roche Diagnostics supported the study with ELISA kits for investigating S100B in CSF and blood. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: TB RS ODS. Performed the experiments: TB LP RS. Analyzed the data: TB NB AS LS. Contributed reagents/materials/analysis tools: NB AS. Wrote the paper: TB LP NB AS RS LB LS ODS.