TY  - RPRT
TI  - A robust mixed linear model analysis for longitudinal data.
AU  - P S Gill
PY  - 2000
DO  - 10.1002/(sici)1097-0258(20000415)19:7<975::aid-sim381>3.0.co;2-9
UR  - https://pubmed.ncbi.nlm.nih.gov/10750063/
ID  - 10750063
ER  -