TY  - RPRT
TI  - Dealing with baseline differences: two principles and two dilemmas.
AU  - J Jamieson
PY  - 1999
DO  - 10.1016/s0167-8760(98)00048-8
UR  - https://pubmed.ncbi.nlm.nih.gov/9987061/
ID  - 9987061
ER  -