Strategies to improve retention in randomised trials
Cochrane database of systematic reviews, 2021-03, Vol.2021 (4), p.MR000032-MR000032 [Peer Reviewed Journal]Copyright © 2021 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. ;EISSN: 1465-1858 ;EISSN: 1469-493X ;DOI: 10.1002/14651858.MR000032.pub3 ;PMID: 33675536
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