-Senior Academic Physician, Department of Neurology, Hadassah University Hospital, Jerusalem,Israel.
-Josephine Frank Kanrich Chair of Neuromuscular Diseases, Hadassah University Hospital, Jerusalem,Israel.
-Chairman, Israeli Society of Neuromuscular Diseases
1999-: Professor of Neurology, Hebrew University-Hadassah Medical School, Jerusalem
1996-: Adjunct Professor, Department of Neurology/Neurosurgery, Faculty of Medicine, McGillUniversity, Montreal, Canada.
- Hereditary neuromuscular disorders (especially in Jews), focusing on Hereditary Inclusion Body Myopathy (HIBM)
- Iatrogenic neuromuscular disorders (especially drug-induced)
- Energy metabolism of muscle (P-Magnetic Resonance Spectroscopy)
- Myasthenia gravis