د. بلال عثمان محمد عثمان

"مؤتمر جمعية الجراحين الفلسطينيين الدولي الخامس 45th annual conference of jordanian surgical society 25th annual congress of pan arab association of surgeons 5th scientific day of the surgical specialty ministry of health in collaboration with international association of surgeons gastroenterologists and oncologists nov. 30,dec. 02 2017, amman,jordan workshop on advanced laparoscopy /gold standard and new frontiers bariatric surgery development conference 3rd april 2015 "