TY  - RPRT
TI  - Statistical analysis of repeated measures data using SAS procedures.
AU  - R C Littell
AU  - P R Henry
AU  - C B Ammerman
PY  - 1998
DO  - 10.2527/1998.7641216x
UR  - https://pubmed.ncbi.nlm.nih.gov/9581947/
ID  - 9581947
ER  -