Medical surveillance in biotechnology research laboratories: Is here a need for special medical check-ups?
Cholinesterase testing for rural workers : experience of a rural health surveillance program in New South Wales.
Self-reported mental health among US military personnel prior and subsequent to the terrorist attacks of September 11, 2001.
Biologic Markers of Oxidative Stress and Nephrotoxicity as Studied in Biomonitoring of Adverse Effects of Occupational Exposure to Lead and Cadmium.
The community initiative on depression : report from a multiphase work site depression intervention.