TY  - RPRT
TI  - Improved tests for a random effects meta-regression with a single covariate.
AU  - Guido Knapp
AU  - Joachim Hartung
PY  - 2003
DO  - 10.1002/sim.1482
UR  - https://pubmed.ncbi.nlm.nih.gov/12939780/
ID  - 12939780
ER  -