About the Authors

Milagros Ruiz

m.ruiz@imperial.ac.uk

Affiliation Dr Foster Unit at Imperial, Dept. Primary Care and Public Health, School of Public Health, Imperial College London, Reynolds Building, St. Dunstan's Road, London, W6 6RP, United Kingdom

Alex Bottle

Affiliation Dr Foster Unit at Imperial, Dept. Primary Care and Public Health, School of Public Health, Imperial College London, Reynolds Building, St. Dunstan's Road, London, W6 6RP, United Kingdom

Susannah Long

Affiliation Department of Medicine for the Elderly, Cambridge Wing, St Mary's Campus, Imperial College London, Praed Street, London, W2 1NY, United Kingdom

Paul Aylin

Affiliation Dr Foster Unit at Imperial, Dept. Primary Care and Public Health, School of Public Health, Imperial College London, Reynolds Building, St. Dunstan's Road, London, W6 6RP, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MR AB PA. Performed the experiments: MR AB PA. Analyzed the data: MR AB PA. Contributed reagents/materials/analysis tools: MR AB PA. Wrote the paper: MR AB SL PA.