TY  - CONF

T1  - Sample size of four clusters-per-arm as a rule of thumb for pilot cluster-randomised controlled trials

JO  - Trials

UR  - https://eprints.whiterose.ac.uk/id/eprint/159944

PY  - 2019/10/22

AU  - Lewis J

AU  - Scharr SJ

ED  - 

DO  - DOI: 10.1186/s13063-019-3688-6

PB  - BioMed Central

VL  - 20

IS  - Suppl_1

Y2  - 2024/09/19

ER  -