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2. Standards for determining coal miner's total disability or death due to pneumoconiosis, subpart B. Criteria for development of medical evidence;Fed Reg,1978
3. Occupational Exposure to Cotton Dust;Final Mandatory Occupational Safety and Health Standards; Appendix D-Pulmonary Function Standards, Fed Reg,1978
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5. Methodology for computer measurement of pulmonary function curves;Shonfeld;Dis Chest,1964