title: OHN: emerging keystone of plant medical surveillance.
mesh_terms: D004781:Environmental Exposure; D006801:Humans; D007883:Legislation, Medical; D008487:Medical History Taking; D009722:Nurse Practitioners / Q000706:statistics & numerical data; D009723:Nurse-Patient Relations; D009785:Occupational Health Nursing; D009787:Occupational Medicine / Q000592:standards; D010808:Physical Examination; D011314:Preventive Health Services; D014481:United States