Professional Appointments
1959-64


1964-67


1964-67


1964-70


1967-73


1972-76



1967-95


1970-95


1971-


1976-


current




1995-


1995-

Assistant Professor of Medicine and Radiology
School of Medicine

Associate Professor of Radiological Science
School of Hygiene and Public Health

Associate Professor of Radiology
School of Medicine

Associate Professor of Medicine
School of Medicine

Professor of Radiological Science
School of Hygiene and Public Health

Acting Chairman
Department of Radiological Science
School of Hygiene and Public Health

Professor of Radiology
School of Medicine

Professor of Medicine
School of Medicine

Principal Professional Staff
Applied Physics Laboratory

Professor of Environmental Health Sciences
School of Hygiene and Public Health

Director
Division of Radiation Health Sciences
Department of Radiological Science
School of Hygiene and Public Health

Professor (Emeritus) of Medicine
School of Medicine

Professor (Emeritus) of Radiology and
Radiological Science
School of Medicine
The Johns Hopkins University
The Johns Hopkins Hospital
current

current

1964-73
current
Physician

Radiologist

Physician-in-Charge
Nuclear Medicine Division
Fu Wai Hospital, Peking, China
Honorary Professor