TY  - RPRT
TI  - Sample size estimation for survival outcomes in cluster-randomized studies with small cluster sizes.
AU  - A K Manatunga
AU  - S Chen
PY  - 2000
DO  - 10.1111/j.0006-341x.2000.00616.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10877325/
ID  - 10877325
ER  -