TY  - RPRT
TI  - Random-effects regression models for clustered data with an example from smoking prevention research.
AU  - D Hedeker
AU  - R D Gibbons
AU  - B R Flay
PY  - 1994
DO  - 10.1037//0022-006x.62.4.757
UR  - https://pubmed.ncbi.nlm.nih.gov/7962879/
ID  - 7962879
ER  -