共 48 条
- [3] The impact of varying cluster size in cross-sectional stepped-wedge cluster randomised trials [J]. BMC Medical Research Methodology, 19
- [5] Unequal cluster sizes in stepped-wedge cluster randomised trials: a systematic review [J]. BMJ OPEN, 2017, 7 (11):
- [6] Sample size calculations for stepped-wedge cluster randomised trials with unequal cluster sizes [J]. TRIALS, 2016, 17