title: Energy expenditure on-the-job: an approach to its assessment.
mesh_terms: D002245:Carbon Dioxide / Q000378:metabolism; D004470:Economics, Medical; D004562:Electrocardiography; D004582:Electronics, Medical; D004734:Energy Metabolism; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D008722:Methods; D009790:Occupations; D010101:Oxygen Consumption; D005082:Physical Exertion; D013997:Time Factors
chemical_list: D002245:Carbon Dioxide