Mansoura University
Egypt
University of Athens
Greece
SRMS IM
India
Croydon Hospital
UK
University of Algarve
Portugal
Mahmoud El Matri hospital
Tunisia
King Abdullah International Medical Research Center
Saudi Arabia
King Abdulaziz University
Saudi Arabia
Board director of poem group in east Mediterranean Member of SIOP Asia
Iran
KAMC
Saudi Arabia
Institute of Endocrinology and Experimental Oncology
Italy