TY  - RPRT
TI  - Cluster randomized trials: another problem for cost-effectiveness ratios.
AU  - Terry N Flynn
AU  - Tim J Peters
PY  - 2005
DO  - 10.1017/s0266462305050531
UR  - https://pubmed.ncbi.nlm.nih.gov/16110722/
ID  - 16110722
ER  -