Hummer, Robert A.Ellison, Christopher G., 1960-2011-04-142017-05-112011-04-142017-05-112002-05http://hdl.handle.net/2152/10918textelectronicengCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.Public health--Social aspects--Michigan--DetroitPublic health--Environmental aspects--Michigan--DetroitRestricted