Khamis, 24, (Back) and Khlouf, 25, prepare an artificial limb inside a mobile truck clinic in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. Two university students forced to interrupt their studies have learnt to make and fit hundreds of new limbs in the past four years in opposition-held areas of Syria. A mobile clinic operating from a truck has gone some way to improve access to treatment. While most patients are between 15 and 45, the clinic also helps children and the elderly with replacement limbs. (Photo by Khalil Ashawi/Reuters)





An artificial limb lies on a table inside a mobile truck clinic in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis, 24, files an artificial limb inside a workshop in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Artificial limbs are stacked on a shelf inside a mobile truck clinic in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis, 24, files an artificial limb inside a workshop in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis, 24, pours gypsum in a bucket to make a mould for an artificial limb inside a workshop in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis (L), 24, examines an amputated leg of a man in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis (L), 24, talks with a man with amputated legs in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





A man carries his brother with amputated legs towards a mobile truck clinic in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





A young man with an amputated leg poses for a photograph standing by his broken artificial limb in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





A man with an amputated leg poses for a photograph wearing his artificial limb in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khlouf, 25, prepares an artificial limb for a man with an amputated leg in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





A man with an amputated leg exercises using an artificial limb in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





A boy with an amputated leg walks using an artificial limb in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





A boy with an amputated leg exercises using an artificial limb in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis (R), 24, helps a man with an amputated leg walk using an artificial limb in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Men with amputated limbs wait to be inspected in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)





Khamis (L), 24, fits an artificial limb on nine-year-old Salma's amputated leg in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria March 20, 2016. (Photo by Khalil Ashawi/Reuters)