Bah humbug! Association between sending Christmas cards to trial participants and trial retention: randomised study within a trial conducted simultaneously across eight host trials

Coleman, Elizabeth orcid.org/0000-0003-4210-1865, Arundel, Catherine Ellen orcid.org/0000-0003-0512-4339, Clark, Laura Kate orcid.org/0000-0001-9227-5447 et al. (7 more authors) (2021) Bah humbug! Association between sending Christmas cards to trial participants and trial retention: randomised study within a trial conducted simultaneously across eight host trials. BMJ Open. e067742. ISSN 2044-6055

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Item Type: Article
Authors/Creators:
Copyright, Publisher and Additional Information:

© 2021, The Author(s).

Dates:
  • Published: 14 December 2021
  • Accepted: 15 November 2021
Institution: The University of York
Academic Units: The University of York > Faculty of Sciences (York) > Health Sciences (York)
Depositing User: Pure (York)
Date Deposited: 20 Dec 2021 16:30
Last Modified: 21 Jan 2025 18:00
Published Version: https://doi.org/10.1136/bmj-2021-067742
Status: Published
Refereed: Yes
Identification Number: 10.1136/bmj-2021-067742
Open Archives Initiative ID (OAI ID):

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Description: bmj-2021-067742.full

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