TY  - RPRT
TI  - Tests for homogeneity of the risk difference when data are sparse.
AU  - S R Lipsitz
AU  - K B Dear
AU  - N M Laird
AU  - G Molenberghs
PY  - 1998
UR  - https://pubmed.ncbi.nlm.nih.gov/9544513/
ID  - 9544513
ER  -