Dubravka Kocijan-Hercigonja M.D., Zagreb, Croatia
Vera Folnegovic-Smalc M.D./Ph.D., Zagreb, Croatia
Mihai Dumitru Gheorge, Bucharest, Romania
NMDNJ, Newark, New Jersey, United States
CNRI-LA, Pico Rivera, California, United States
Neurobehavioral Research Company, Lawrence, New York, United States
Svetlozar H Haralanov Ph.D., Sofia, Bulgaria
Vera Folnegovic-Smalc M.D/Ph.D, Zagreb, Croatia
Vihra Milanova M.D., Sofia, Bulgaria
Saint Vincent Catholic Medical Centers of New York, Staten Island, New York, United States
CNS Research Institute (CRI), Philadelphia, Pennsylvania, United States
Harmony Research, Johnson City, Tennessee, United States
Clinical Trials Research Services, Pittsburgh, Pennsylvania, United States
Clinical Physiology Associates, Ft. Myers, Florida, United States
International Clinical Research Associates, Virginia Beach, Virginia, United States