Christiaan Barnard, Ph.D. '58, performed the world's first heart transplant (deceased)

Susan Berget, Ph.D. '74, geneticist whose work led to Nobel Prize, 1993; changed scientists' understanding of the structure of genes

David P. Campbell, Ph.D. '60, author of Campbell Interest and Skill Survey

Mary Crimi, B.A. '93, past national president of the American Animal Hospital Association

Robert A. Good, M.D. '47, pediatrician and bone-marrow transplant pioneer; author of more than 40 books and 1,800 published scientific articles; earned 80 scientific awards and honorary degrees

Harrison Gough, Ph.D. '49, author of the California Psychological Inventory

Moshe Gur, Ph.D. '64, professor and head of the Department of Biomedical Engineering at the Technion (Israel's top technical university) in Tel Aviv

Yeo Shin Hong, M.S. '71, dean, Seoul National University School of Nursing; past president of the Korean Academic Society of Nursing Education

Louis Ignarro, Ph.D. '66, Nobel Prize in Medicine and Physiology, 1999, for contributions to discovery that led to the development of Viagra

Marjorie Jamieson, M.S. '79, created the Living-at-Home Block Nurse Program, a national model of long-term care for the elderly

Steve Kraus, M.S.W. '81, M.P.H. '81, worked with World Health Organization in Rwanda; coordinator of Thailand Embassy's efforts to help fleeing Vietnamese refugees; working on HIV-AIDS crisis in Thailand

Mary Jo Kreitzer, Ph.D. '90, established Center for Spirituality and Healing at University of Minnesota, one of the country's first centers for complementary and alternative medicine

Edward B. Lewis, B.S. '39, honorary Ph.D. '93, Nobel Prize for Physiology or Medicine, 1995, for discovering a class of genes that control embryonic development and discovering that they are the same in all animals

C. Walton Lillehei, B.S. '39, M.D. '41, open-heart surgery pioneer; helped develop heart pacemaker (deceased)

Marie Manthey, B.S., '61, M.S. '64, owner and president of Creative Nursing Management and Creative Healthcare Resources

Greg Plotnikoff, M.D. '93, medical director of the Center for Spirituality and Healing; expert in the area of herbs and spirituality and clinical care

Mary Roessell, M.D. '87, Navajo Indian who completed a psychiatry residency in New Mexico, then returned to work on her home reservation

Norman Shumway, '56, performed first U.S. heart transplant

Noriyas Un, M.S. '87, Cambodian refugee nurse

Paul Volberding, M.D. '75, AIDS researcher at UC-San Franicisco; director of AIDS programs at San Francisco General Hospital

Owen Wangensteen, M.D. '21, heart-lung machine pioneer (deceased)

Phua Xiong, M.D. '96, Hmong woman physician