TY  - RPRT
TI  - Regression analysis for correlated data.
AU  - K Y Liang
AU  - S L Zeger
PY  - 1993
DO  - 10.1146/annurev.pu.14.050193.000355
UR  - https://pubmed.ncbi.nlm.nih.gov/8323597/
ID  - 8323597
ER  -