New 5th Edition Available Summer 2009!     Introduction to Epidemiology, Fourth Edition  is the ideal introductory text For The epidemiology student with minimal training in the biomedical sciences and statistics.  With greater emphasis on acute and chronic noninfectious diseases than ever before, The new edition captures the evolution of the discipline, featuring:  Descriptive and analytic research designs used in epidemiology. New case studies and news files representing applications of commonly used research designs. Learning objectives, As well as study questions with descriptive answers, In each chapter.  Detailed tables and figures that summarize and clarify important concepts and information. In addition to students of epidemiology, this text is a  valuable reference for epidemiologists working in the field, industrial hygienists, infectious disease nurses, and staff epidemiologists.  The book also features h elpful instructor resources, including an Instructor's Manual, Testbank and PowerPoints TM .