Manual Therapy Effect in Placebo-Controlled Trials: A Systematic Review and Meta-Analysis.
Miguel Molina-AlvarezAlberto Arribas-RomanoCarmen Rodríguez-RiveraMiguel Ángel Martínez-GarcíaJosue Fernández-CarneroSusan Armijo-OlivoCarlos Goicoechea GarcíaPublished in: International journal of environmental research and public health (2022)
The literature presents a lack of a unified placebo control group design for each technique and an absence of assessment of expectations. These two issues might account for the unclear results obtained in the analysis.