This edition of An Introduction to Bioethics is a completely revised and update version of the highly successful 1979 edition widely used as a basic text for lay persons. It offers an overview of the many complex questions in the areas of medical care and bioethics created by today's revolution in bio-technology. After the introductory chapters on the nature of bioethics and a summary of ethical concepts, the book turns its attention to concrete issues, including: abortion, euthanasia, living wills, birth defects, organ transplants, human research, behavior modification, genetic engineering, patients' rights, and the environment. Each section contains questions for discussion and resources for further study.