Research Professor, INSERM

Professor Epidemiology, Public Health, and Neurology University of California Davis

University of California Irvine

Geriatric Research Unit, Dept. of Clinical Research, University of Southern Denmark

Emory University School of Medicine

Associate Project Scientist, University of California Irvine

SUPSI - University of Applied Sciences and Arts of Southern Switzerland

University of Toronto

University of California, Irvine

Maragheh University of Medical Sciences, Maragheh, Iran