In 1969, he was chosen as president of the
University of San Francisco where he served until 1972. The medical school of the
University of California, San Francisco invited him to join the faculty and create a program in medical ethics. Jonsen was one of the first bioethicists to be appointed to a medical faculty. The
National Heart, Lung and Blood Institute selected him as a member of the first
NIH committee to deal with ethical, social and legal issues of a developing medical technology, the totally implantable artificial heart (1972–73). Jonsen was a member of the
National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research (1974–78), charged with formulating regulations governing the use of humans in research. He participated in development of regulations regarding use of the human fetus, children and mentally incapacitated persons as research subjects; he also assisted in the writing of the
Belmont Report (1978), the statement of ethical principles, a leading statement on research ethics. In 1979, Jonsen was appointed to the successor body, the
President's Commission on the Study of Ethical Problems in Medicine (1979–82) which devised reports on
brain death, forgoing
life-support,
informed consent and other topics which have become the main subjects of
bioethics. Jonsen was a pioneer in the practice of "
clinical ethics", in which an ethicist serves as a consultant to those making ethical decisions about appropriate care of patients. In 1983, Jonsen authored with Mark Siegler and William Winslade 'Clinical Ethics: A Practical Approach to Ethical Decisions in Clinical Medicine', a seminal book that provides a unique structured approach to solving ethical issues that arise in daily clinical practice. Jonsen joined John Fletcher as founders of the Society for Clinical Ethics (SBC), which later merged with the Society for Health and Human Values (SHHV) and the American Association of Bioethics (AAB) to form the American Society for Bioethics and Humanities (ASBH) in 1998. In 1987, Jonsen assumed the chairmanship of the Department of Medical History and Ethics,
School of Medicine, University of Washington. He remained there until his retirement in 1999. ==Later life==