TY  - RPRT
TI  - Borrowing strength from external trials in a meta-analysis.
AU  - J P Higgins
AU  - A Whitehead
PY  - 1996
DO  - 10.1002/(sici)1097-0258(19961230)15:24<2733::aid-sim562>3.0.co;2-0
UR  - https://pubmed.ncbi.nlm.nih.gov/8981683/
ID  - 8981683
ER  -