ITV News has obtained exclusive footage showing the desperate battle to save lives in Syria's field hospitals amid the most appalling conditions.
As government troops continue to pound rebel forces across the country, volunteer medics are risking their own lives to save others on a daily basis.
With meagre medical supplies, they treat patients in makeshift operating theatres under the constant threat of explosions and sniper fire.
Our Middle East Correspondent Geraint Vincent reports on life in one such hospital in Syria's largest city, Aleppo.
Please note that this report contains pictures of medical procedures