Protection for unborn?  Work-safety issue isn't as simple as it sounds.
D009358:Congenital, Hereditary, and Neonatal Diseases and Abnormalities; D004651:Employment; D005260:Female; D005333:Fetus; D015386:Hazardous Substances; D006801:Humans; D009017:Morbidity; D009787:Occupational Medicine; D011247:Pregnancy; D037841:Pregnant People; D012098:Reproduction; D014930:Women; D014933:Women's Rights