Thirty-four contributors reflect the interdisciplinarity that is characteristic of bioethics, and its increasingly international character. Topics concern mental illness and moral agency, the rule of double effect, justice and the elderly, the definition of death, organ transplantation, feminist approaches to commodification of the body, life extension, advance directives, physician-assisted death, abortion, genetic research, population screening, enhancement, research ethics, and the implications of public and global health for bioethics.