Recruitment and retention rates in randomised controlled trials of exercise therapy in people with multimorbidity: a systematic review and meta-analysis.
Lasse K HarrisSøren T SkouCarsten B JuhlMadalina JägerAlessio BriccaPublished in: Trials (2021)
ClinicalTrials.gov CRD42020161329 . Registered on 28 April 2020.