Study of public health careers: some characteristics of industrial hygienists.
D000367:Age Factors; D004522:Educational Status; D006281:Health Occupations; D007182:Income; D009787:Occupational Medicine; D012067:Religion; D012737:Sex Factors; D012923:Social Class; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D014481:United States