PT  - JOURNAL ARTICLE
AU  - Deddens, J A
AU  - Petersen, M R
TI  - Approaches for estimating prevalence ratios
AID  - 10.1136/oem.2007.034777
DP  - 2008 Jul 01
TA  - Occupational and Environmental Medicine
PG  - 501--506
VI  - 65
IP  - 7
4099  - http://oem.bmj.com/content/65/7/501.short
4100  - http://oem.bmj.com/content/65/7/501.full
SO  - Occup Environ Med2008 Jul 01; 65