Al Jazeera has obtained exclusive access to a network of medical professionals who are trying to help the towns and cities under siege by the Syrian army.
Medical treatment for people caught up in the violence is becoming increasingly hard to obtain, not just for injured fighters who cannot go to public hospitals for fear of arrest or worse, but for any civilian who the government suspects of helping the opposition.
Medics face mounting challenges as they try to treat injured fighters and civilians, while under attack.
Activists have smuggled entire field hospitals into the country and developed a secret network to bring in supplies.
Al Jazeera’s Anita McNaught reports from Idlib province in Syria.