1. Radiologists and radiographers are among the earliest occupational groups exposed to radiation. 2. Certain occupational groups may be more prone to developing voice disorders, namely dysphonia. 3. "Maids, as an occupational group , are not visible, " writes Ehrenreich. 4. The Air Force occupational groups are designated " specialties ". 5. "' Occupational assessment "'examines the skills, knowledge, and abilities required for affected occupational groups . 6. As organizations, these branches were abolished in 1993, but they still exist as occupational groups . 7. The Navy occupational groups are named " classes ". 8. Nurses constitute the largest occupational group in the health care system ( 2.6 million ). 9. Lower occupational groups are at higher risk of work-related ill health than higher occupational groups . 10. Lower occupational groups are at higher risk of work-related ill health than higher occupational groups.