David G. Kleinbaum is Associate Professor of Biostatisticsand Epidemiology at the University of North Carolina School ofPublic Health and holds a Ph.D. from the University of NorthCarolina. Lawrence L. Kupper is Professor of Biostatistics andEpidemiology at the University of North Carolina School of PublicHealth and holds a Ph.D. from the University of North Carolina.Drs. Kleinbaum and Kupper have worked on the development ofapplications of statistical methods to epidemiology for over tenyears. They have conducted several epidemiological research studiesand published their work in Biometrics and the American Journal ofEpidemiology, among others. Their short course on the subject ofthis book is in high demand in the U.S. and internationally. Theyare also the authors of Applied Regression Analysis (Duxbury Press,1977). Hal Morgenstern is Assistant Professor of Epidemiology atthe Yale University School of Public Health. Dr.Morgenstern's work focuses on epidemiologic research methodsand he has published extensively on the subject in the AmericanJournal of Epidemiology, the International Journal of Epidemiology,Biometrics and the Journal of Community Health. Much of hisresearch is applied to planning and policy issues, as well as tocardiovascular disease and to senile dementia. Dr. Morgensternholds a Ph.D. in Epidemiology from the University of NorthCarolina, as well as degrees in Architecture from M.I.T. and inRegional Planning from the University of North Carolina.