About the Authors

Jay P. Singh

Affiliation Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, United Kingdom

Martin Grann

Affiliation Centre for Violence Prevention, Karolinska Institutet, Stockholm, Sweden

Paul Lichtenstein

Affiliation Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden

Niklas Långström

Affiliation Centre for Violence Prevention, Karolinska Institutet, Stockholm, Sweden

Seena Fazel

seena.fazel@psych.ox.ac.uk

Affiliation Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JPS MG SF. Performed the experiments: JPS MG NL PL SF. Analyzed the data: JPS. Contributed reagents/materials/analysis tools: JPS MG NL PL SF. Wrote the paper: JPS MG NL PL SF.