University of Massachusetts Medical School
United States
George Washington University School of Medicine
United States
University of Michigan
United States
Kanazawa University
Japan
Kyoto Prefectural University of Medicine
Japan
University of Arizona
United States
Clinical Centre of Serbia
Serbia
Südharz Klinikum Nordhausen gGmbH
Germany
University of Arizona
United States
Cathay General Hospital
China
Christchurch Hospital
New Zealand
University of Mons
Belgium
Chang Gung Memorial Hospital
China
Centro Polispecialistico Tizianoa
Russian Federation
Sixth Affiliated Hospital of Sun Yat-Sen University
China
University of Padova
Italy
University of Padua
Italy
Gunma University Graduate School of Medicine
Japan
General Hospital of Shenyang Military Area Command
China
Mitera Hospital
Greece
Graduate Research School of Hainan medical university
China
Memorial Sloan Kettering Cancer Center
United States
University Hospital Ulm
Germany
Hanyang University
Korea, Republic of
University of Padua
Italy
Penn State Milton S. Hershey Medical Center
United States
University of North Carolina
United States
University of Padova
Italy
University of Malaga
Spain
Gunma University Graduate School of Medicine
Japan
National Defense Medical Center
China
University Duisburg-Essen
Germany
University of California
United States
Helman, University of Michigan Healthcare System
United States
U.T. M.D. Anderson Cancer Center
United States
Bethune International Peace Hospital
China
Tsinghua University
China
Greater Los Angeles Veterans Administration
United States
National Cancer Institute "Regina Elena
Italy
Trabzon Kanuni Research and Training Hospital
Turkey
Istanbul Research and Training Hospital
Turkey
Tzu Chi University
Turkey
University of Catanzaro
Italy
University of Alabama-Birmingham
United States
Private Mecidiyekoy Cevre Hospital
Turkey
University of Cincinnati
United States
Medical University Innsbruck
Austria
Albert Einstein College of Medicine
United States
Anadolu Medical Center
Turkey
King Abdulaziz University Hospital
Saudi Arabia
Kanazawa University
Japan
Sun Yat-sen University
China
Medical University of Warsaw
Poland
Medical University of Lodz
Poland
Akita University
Japan
Kobe City Medical Center General Hospital
Japan
Shinjyuku Voice Clinic
Japan
Kinki University Faculty of Medicine
Japan
Yuzuncu Yil University School of Medicine
Turkey
Yunus Emre Government Hospital
Turkey