TY - JOUR T1 - Placebo comparator group selection and use in surgical trials: the ASPIRE project including expert workshop JO - Health Technology Assessment UR - https://eprints.whiterose.ac.uk/178539/ PY - 2021/09/01 AU - Beard DJ AU - Campbell MK AU - Blazeby JM AU - Carr AJ AU - Weijer C AU - Cuthbertson BH AU - Buchbinder R AU - Pinkney T AU - Bishop FL AU - Pugh J AU - Cousins S et al ED - DO - DOI: 10.3310/hta25530 PB - National Institute for Health Research VL - 25 IS - 53 Y2 - 2025/06/23 ER -