@article{article, title = {{Challenges in the design, planning and implementation of trials evaluating group interventions}},
publisher = {{Springer Nature}},
url = {{http://eprints.whiterose.ac.uk/156253/ }},
year = {{2020}},
month = {{1}},
author = {{Biggs K and Hind D and Gossage-Worrall R and Sprange K and White D and Wright J and Chatters R and Berry K and Papaioannou D and Bradburn M and Walters SJ et al}},
doi = {{10.1186/s13063-019-3807-4}},
volume = {{21}},
journal = {{Trials}},
note = {{Accessed on 2025/07/15}}}