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Occupational and Environmental Medicine · 1958 · 31 citations · 0 references
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Public HealthHealth SciencesOccupational HealthStatisticsOccupational EpidemiologyOccupational MedicineOccupational SafetyVital SignsVital Statistics ReportingVital Statistics SystemsAge-specific Vital RatesVital Signs Measurement AccuracyVital Statistics Data Validation