Cardiovascular Thoracic Surgeon, specialized in Heart surgery, Vascular Surgery, Lung and Thoracic Surgery
-Faculty of Medicine, Airlangga University
-Thoracic Cardiovascular Surgery training in Germany
-Pioneering Open Heart Surgery in Surabaya in 1973
-Developing the Department of Thoracic and Cardiovascular Surgery at Airlangga University and became the first Professor in Thoracic Cardiovascular Surgery in Indonesia.