TY  - RPRT
TI  - Testing for bias in weighted estimating equations.
AU  - S Lipsitz
AU  - M Parzen
AU  - G Molenberghs
AU  - J Ibrahim
PY  - 2001
DO  - 10.1093/biostatistics/2.3.295
UR  - https://pubmed.ncbi.nlm.nih.gov/12933540/
ID  - 12933540
ER  -