About the Authors

Christine Roffe

christine.roffe@northstaffs.nhs.uk

Affiliations Stoke Stroke Research Group, North Staffordshire Combined Healthcare Trust, Stoke-On-Trent, Staffordshire, United Kingdom, Institute for Science and Technology in Medicine, Keele University, Keele, Staffordshire, United Kingdom

Khalid Ali

Affiliation Academic Departments of Geriatrics, Brighton and Sussex Medical School, Brighton, East Sussex, United Kingdom

Anushka Warusevitane

Affiliation Stoke Stroke Research Group, North Staffordshire Combined Healthcare Trust, Stoke-On-Trent, Staffordshire, United Kingdom

Sheila Sills

Affiliation Stoke Stroke Research Group, North Staffordshire Combined Healthcare Trust, Stoke-On-Trent, Staffordshire, United Kingdom

Sarah Pountain

Affiliation Stoke Stroke Research Group, North Staffordshire Combined Healthcare Trust, Stoke-On-Trent, Staffordshire, United Kingdom

Martin Allen

Affiliation Department of Respiratory Medicine, University Hospital of North Staffordshire, Stoke-On-Trent, Staffordshire, United Kingdom

John Hodsoll

Affiliation Stoke Stroke Research Group, North Staffordshire Combined Healthcare Trust, Stoke-On-Trent, Staffordshire, United Kingdom

Frank Lally

Affiliation Institute for Science and Technology in Medicine, Keele University, Keele, Staffordshire, United Kingdom

Peter Jones

Affiliation School of Computing and Mathematics, Keele University, Keele, Staffordshire, United Kingdom

Peter Crome

Affiliation Institute for Life Course Studies, Keele University, Keele, Staffordshire, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CR PC PJ MA KA. Performed the experiments: CR SS AW KA. Analyzed the data: CR FL JH PJ MA SP SS AW KA. Wrote the paper: CR FL JH PJ SP KA. Review of manuscript: CR FL PC KA. Study design: CR PC.