![](/img/cover-not-exists.png)
Second-Order Selection Bias Reply
Sepulveda, Martin J., Goetz, Axel, Grana, JohnVolume:
36
Journal:
Journal of Occupational and Environmental Medicine
DOI:
10.1097/00043764-199410000-00003
Date:
October, 1994
File:
PDF, 237 KB
1994