Dr Elgazzar of the WHO gives a briefing to Syrian medical staff as they take part in a training exercise...
Dr Mohammed Elgazzar of the World Health Organisation (WHO) gives a briefing to Syrian medical staff as they take part in a training exercise to learn how to treat victims of chemical weapons attacks, in Gaziantep, Turkey, July 20, 2017. Picture taken July 20, 2017. REUTERS/Murad Sezer