Strategies to improve retention in randomised trials: a Cochrane systematic review and meta-analysis

por Brueton, V C, Tierney, J F, Stenning, S, Meredith, S, Harding, S, Nazareth, I, Rait, G
Publicado 2014

Use of strategies to improve retention in primary care randomised trials: a qualitative study with in-depth interviews

por Brueton, V C, Stevenson, F, Vale, C L, Stenning, S P, Tierney, J F, Harding, S, Nazareth, I, Meredith, S, Rait, G
Publicado 2014