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Additional Information

Competing Interests

The author declares they have no competing interests.

Author Contributions

Muhammad Z Hossain analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Ethical approval for the study was given by Middlesex University London and from the BWAC from whose membership database the older people were recruited.

Funding

The author declares there was no funding for this work.


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