TY  - RPRT
TI  - Measuring activities in clinical trials using random work sampling: implications for cost-effectiveness analysis and measurement of the intervention.
AU  - E Oddone
AU  - M Weinberger
AU  - A Hurder
AU  - W Henderson
AU  - D Simel
PY  - 1995
DO  - 10.1016/0895-4356(94)00229-j
UR  - https://pubmed.ncbi.nlm.nih.gov/7775988/
ID  - 7775988
ER  -