TY  - RPRT
TI  - Monitoring clinical trials.
AU  - H J Barnett
AU  - D L Sackett
PY  - 1993
DO  - 10.1212/wnl.43.12.2437
UR  - https://pubmed.ncbi.nlm.nih.gov/8255436/
ID  - 8255436
ER  -