TY  - RPRT
TI  - [Cluster sampling: consequences of data analysis on drawing conclusions].
AU  - C Laurent
AU  - J-F Etard
PY  - 2005
DO  - 10.1016/s0398-7620(05)84571-7
UR  - https://pubmed.ncbi.nlm.nih.gov/15888989/
ID  - 15888989
ER  -