Technical Information Branch National Center for Health Statistics Center Building / National Technical Information Service / Public Health Service / Mobile Examination Center / Strata and Pseudo Primary Sampling Unit / DEPARTMENT OF HEALTH AND HUMAN SERVICES / Pseudo Primary Sampling Unit / 5AS Institute / U.S. Bureau of the Census / NATIONAL CENTER FOR HEALTHSTATISTICS Hematology / DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service Centers for Disease Control National Center for Health Statistics Hyattsville / Health Examination Statistics National Center for Health Statistics Center Building / U.S. Government Printing Office / National Center for Health Statistics / / /