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Patrick D. Guinan, MD, MPH, is a Clinical Assoc. Professor in the Dept. of Urology, University of Illinois, College of Medicine in Chicago. He completed his internship at Cook County Hospital in 1962 and the Urology Residency at CCH in 1969. In 1975, he received a Masters in Public Health from Columbia University. He served as Director of Urology of the Chicago Dept. of Health, 1970-75; Chair, Division of Urology at CCH, 1975-85 and at UIC, 1978-85. He is now Chairman of the Board of the Hetkoen Institute.

Kenneth J. Printen, MD, completed his internship at CCH, 1961-62 and was drafted for military service, 1962-64. He returned to CCH and finished the surgical residency in 1968. At the University of Iowa, College of Medicine he rose to Professor of Surgery (1969-87). He returned to Chicago and became Chief of Dept. of Surgery, St. Francis Hospital. Since 1987, he taught at Loyola, Northwestern, Chicago Medical School, and the University of Illinois Metro Residency. He retired from the Army Reserve as a Brigadier General in 1984.

James L. Stone, MD, was a Surgical Intern at CCH, 1974-75, followed by Surgical Residency, 1975-76 and a Cook County-UIC Neurosurgery Residency, 1976-80. He remained as faculty in Neurosurgery at UIC and attained Assoc. Professor and Chair of the Neurosurgical Division at CCH in 1987. In 1992, he was appointed Professor of Neurological Surgery at Loyola, and later Rush, until his retirement in 2003. He acted as Interim Head at CCH in 2004 until he rejoined UIC as Professor of Neurosurgery and Neurology. Dr. Stone remains active in the clinical practice of neurosurgery and neurophysiology at UI and the affiliated Advocate Illinois Masonic Hospital as well as a voluntary appointment in Neurosurgery at CCH.

James S.T. Yao, MD, PhD, completed a rotating internship at CCH, 1961-62 and stayed on for General Surgical Residency, 1962-67. He furthered his training in vascular surgery at St. Mary’s Hospital Medical School. At the same time, he received a Ph.D. in vascular physiology from the University of London. He returned to Chicago in 1973 to serve as Attending Surgeon at Wesley Memorial Hospital (now NMH) and on the faculty of Feinberg School of Medicine, Northwestern University. He was appointed Magerstadt Professor of Surgery in 1985 and served as Chief of Division of Vascular Surgery, 1988-97 and Chair of Dept. of Surgery, 1997-00. Dr. Yao is now retired as an Emeritus Professor of Surgery at Northwestern.