title: 1974 Yant Memorial Lecture: fifty years of British occupational hygiene.
mesh_terms: D002568:Certification; D004526:Efficiency; D004787:Environmental Pollution; D005221:Fatigue / Q000209:etiology; D006076:Government; D049673:History, 20th Century; D006801:Humans; D007883:Legislation, Medical; D008887:Military Medicine; D009784:Occupational Diseases / Q000209:etiology / Q000517:prevention & control; D009787:Occupational Medicine / Q000193:education / Q000266:history*; D010067:Ownership; D012955:Societies, Medical / Q000266:history; D013997:Time Factors; D006113:United Kingdom; D014481:United States; D014937:Work