共 50 条
- [11] Recruitment difficulties in randomised controlled trials CONTROLLED CLINICAL TRIALS, 2003, 24 : 214S - 215S
- [15] Approaches to multiplicity in publicly funded pragmatic randomised controlled trials: a survey of clinical trials units and a rapid review of published trials BMC Medical Research Methodology, 22
- [16] Strategies to improve recruitment to randomised controlled trials COCHRANE DATABASE OF SYSTEMATIC REVIEWS, 2010, (04):
- [18] Improving the recruitment activity of clinicians in randomised controlled trials: a systematic review BMJ OPEN, 2012, 2 (01):