University of Florida

Neurological Surgery

University of Alabama at Birmingham

Psychiatry & Neurology, Pain Medicine

Stanford University

Psychiatry & Neurology, Neurology

The University of Texas Health Science Center, Houston

Assistant Professor of Diagnostic and Interventional Radiology, Zagazig Uni.

Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia

Internal Medicine

The Radiosurgery Society

Stanford University

Stanford University

Ankara Bilkent City Hospital, Department of Algology

First Affiliated Hospital Xi'an Jiaotong University

Shifa Clinical Research Center

Zhejiang Chinese Medical University

Aretaieio Hospital, National and Kapodistrian University of Athens

National Cancer Institute (NCI)

Plastic Surgery

Cleveland Dental Institute

Cleveland Dental Institute

Corona doctors medical clinics

Tishreen University

Instituto de Oftalmología Conde de Valenciana

CORONA DOCTORS MEDICAL CLINICS

National Cancer Institute (NCI)

Charité University Berlin