共 7 条
[1]
Clinical trials: Are they a good buy?
[J].
JOURNAL OF CLINICAL ONCOLOGY,
2001, 19 (23)
:4330-4339
[7]
Incremental costs of enrolling cancer patients in clinical trials: a population-based study
[J].
JNCI-JOURNAL OF THE NATIONAL CANCER INSTITUTE,
1999, 91 (10)
:847-853