About the Authors

Charles S. Cornford

charles.cornford@nhs.net

Affiliation Fulcrum Medical Practice, Acklam Road, Middlesbrough, England

Helen J. Close

Affiliation School of Medicine, Pharmacy and Health, Wolfson Research Institute, Durham University, Stockton-on-Tees, England

Roz Bray

Affiliation Clinical Blood Sciences, Jenner Wing, St Georges Hospital, Blackshaw Road, Tooting, London,England

Deborah Beere

Affiliation Northern Region Gender Dysphoria Service, Benfield House, Walkergate Park, Benfield Road, Newcastle upon Tyne, England

James M. Mason

Affiliation School of Medicine, Pharmacy and Health, Wolfson Research Institute, Durham University, Stockton-on-Tees, England

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CSC JMM. Performed the experiments: CSC JMM. Analyzed the data: JMM HC. Contributed reagents/materials/analysis tools: DB. Wrote the paper: CSC HC RB DB JMM.