1967
Resident in Neurosurgery, University Hospital, Lausanne
1968
Resident in Neuropathology, Lausanne
1969
Resident in clinical electrophysiology, Lausanne
1970 - 1971
Clinical and research fellow, Massachusetts General Hospital, Harvard Medical School, Boston, USA
1972
Resident in general surgery, Morges,
1973 - 1978
Resident in neuroradiology, Lausanne
1979
Staff member, neurosurgery, Univbersity Hospital, Lausanne
1974 - 1979
Chief resident in neurosurgery, Lausanne
1980
Visiting neurosurgeon, University of California Medical Center,
San Francisco
1981 - 1983
Privat Docent, Medical Faculty, University of Lausanne
1984 - 1994
Professor and Chairman, Dept of Neurosurgery, University Hospital (CHUV), Lausanne
1995 - 2000
Director, Département Universitaire Romand de Neurochirurgie, University Hospitals of Lausanne and Geneva
2007
Present position:
Honorary Professor, Faculty of Medicine University of Geneva.
Honorary Professor, Faculty of Bilogy and Medicine, University of Lausanne.
Honorary Professor, Burdenko Institute, Moscow.
2007
Present professional activity:
Neurosurgeon (Microneurosurgery), Hirslanden Klinik, Zurich
Editor-in-Chief, The European Journal of Neurosurgery, (Acta Neurochirurgica)
1995 - 2007
Professor and Chairman, Dept of Neurosurgery, Univbersity Hospital (HUG), Geneva.
2000 - 2007
Director of the Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva