1966, 1968: Junior and Senior Medical Clerk "Practicante Externo Menor y Mayor" in the Department of Emergency Medicine at the Mendoza Central Hospital, Mendoza, Argentina.
1967: War Volunteer, Tel-Hashomer Government Hospital. Chaim Sheba Medical Center, University of Tel-Aviv Medical School, Israel. (Six-Day War, June/September, 1967 , under the mentorship of Dr. Baruch Padeh and Chaim Sheba).
Compulsory Rotating: University of Buenos Aires Affiliated Hospitals, 1969-70. Medicine at the Instituto de Investigaciones Medicas (Prof.Dr. Lanari), Surgery at the Hospital de Clinicas (Prof.Dr. Brea), University of Buenos Aires.
Rotating Surgical: Baylor College of Medicine Affiliated Hospitals, Texas Medical Center, Houston, Texas, 1970-71. Ben Taub General Hospital and Methodist Hospital, Drs. Michael E. DeBakey and George Ehni.
RESIDENCIES and FELLOWSHIP:
General Surgery (1971-1972) at the Mayo Clinic, Rochester, Minnesota.
Neurological Surgery (1972-1977) at the Mayo Clinic, Rochester, Minnesota.
Neurosurgical Chief Resident Associate to the Staff of the Mayo Clinic (Mayo Clinic and Foundation and Graduate School of Medicine, University of Minnesota)
(Chairman: Dr. Collin S. MacCarty; other staff: Drs. Miller, Kerr, Sundt, Onofrio, Svien, Rhoton, Laws, Piepgras).
Gamma Knife training, Karolinska Hospital, Stockholm, Sweden, 1998.
Emergency and Medical Disaster Preparedness, Israel, 2004.
Lumbar Artificial Disc training, Cincinnati, Ohio, 2005.
Cervical Arthroplasty, Core Education Course. Morristown, New Jersey, August 24, 2007.
CyberKnife stereotactic radiosurgical system training, St. Raphael's Hospital, New Haven, CT, 2008