TY - JOUR T1 - The magnitude and temporal changes of response in the placebo arm of surgical randomized controlled trials: a systematic review and meta-analysis JO - Trials PY - 2016/12/12 AU - Wartolowska KA AU - Feakins BG AU - Collins GS AU - Cook J AU - Judge A AU - Rombach I AU - Dean BJF AU - Smith JA AU - Carr AJ ED - DO - DOI: 10.1186/s13063-016-1720-7 PB - Springer Science and Business Media LLC VL - 17 Y2 - 2025/07/08 ER -