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Merchant James A. M.D.; Lumsden, John C. B.Ch.E.; Kilburn, Kaye H. M.D.; O'Fallon, William M. Ph.D.; Ujda, John R. M.D.; Germino, Victor H. Jr. R.P.A.; Hamilton, John D. M.D.
Journal of Occupational Medicine: March 1973 - Volume 15 - Issue 3 - ppg 212-221
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