Dentist and medical worker from Douma. Since the start of the Syrian uprising, Katoub has worked on the provision of emergency medical care and helped establish several field hospitals in Douma and nearby communities. In 2014 he escaped from Douma with his family and fled to Turkey, where he continued to support the medical sector in the besieged Eastern Ghouta. Katoub works as Advocacy Manager for the Syrian American Medical Society, a humanitarian organization harnessing the talents of Syrian-American health care professionals to provide medical relief.