Document OJ3QdGzDYoYGXQKbgdavZXxbX

UNION CARBIDE CORPORA! I OH PHCNF 948-5582 DAVID H. GLENN. M. D. MEDICAL DIRECTOR GULF COAST AREA P.0. BOX 471 TEXAS CITY, TEXAS 77590 April 7, 1931 Dear Carbider, The National Institute for Occupational Safety and Health reports that the epidemiology study initiated two years ago at Union Carbide's Texas City Plant is nearing completion. One of the final phases of their study will be to contact, probably by telephone, selected "control people" - these are people of the same race and sex who were hired at Union Carbide at approximately the same time as one of the cases. You are one of the "control people" used in the NIOSH study and may be contacted by NIOSH or their contractors (possibly EQUIFAX). They wi13 ask one or two simple questions pertaining to your place of residence during your employment by Union Carbide. Other pertinent vital statistics and occupational work history has already been furnished through our Employee Records Division. If you are contacted by NIOSH, or their contractors, we hope you can respond to their questions. We are now anticipating Completion of the full investigation by the end of this month with a final report of findings early in May. If you have any questions, please call me at 948-5582. Sincerely, DHG/lb David H. Glenn, M.D. Medical Director, Texas Gulf Coast A' ucc 097310