(Q37572083)
Statements
1 reference
Strategies to improve retention in randomised trials: a Cochrane systematic review and meta-analysis (English)
1 reference
V C Brueton
S Stenning
S Meredith
4 February 2014
4 references
19 September 2019
18 January 2021
30 July 2022
4 references
19 September 2019
18 January 2021
30 July 2022
3 references
19 September 2019
18 January 2021
30 July 2022
1 reference
1 reference