TY  - RPRT
TI  - Ethics and multicentre research projects.
AU  - R Benster
AU  - A Pollock
PY  - 1992
DO  - 10.1136/bmj.304.6843.1696
UR  - https://pubmed.ncbi.nlm.nih.gov/1633548/
ID  - 1633548
ER  -