@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 2024/12/22}}}