Fatebenefratelli Hospital, Benevento, Italy
Clinical Researcher at the Oasi Research Institute – IRCCS in Troina, Italy
General Regional Hospital George Papanikolaou, Thessaloniki, Greece
University of Athens, Greece
University hospital in Barcelona, Spain
Health Consulting Division, Harbour Front Health Group, Canada
Al Ramadi Teaching Hospital, Iraq
Reparto Victoria Sagua la Grande, Villa Clara, Cuba
Rajendra Institute of Medical Sciences, India
Padmashree Institute of Management and Sciences, India
Sri Venkateshwara ENT Institute, India
Pacific Dental College and Hospital, Udaipur, India
Cochin University of Science and Technology, India
Government Medical College Bhavnagar, India
Faculty of Medicine, Cairo University, Egypt
Faculty of Nursing, Beni-Suef University, Egypt
Faculty of Medicine, Zagazig University, Egypt
Sunflower Soft Company, Vietnam
Labco Advanced Clinical Laboratory, Addis Ababa, Ethiopia
The Tashkent Institute of Postgraduate Medical Education, Uzbekistan
Iranian Fisheries Science Research Institute, Iran
University of Information Technology Engineering and Management Sciences, Pakistan