Hundreds of thousands of people are missing in Syria, including estimates ranging from 160,000 as of 2011 to 300,000 over five decades.[3] The International Committee of the Red Cross (ICRC) has registered more than 37,000 missing persons in the last 14 years, which is only a fraction of the true extent.[2] Doctors and forensic experts are working to restore the long-neglected infrastructure of forensic medicine.[1][5] Since the fall of the Assad regime, at least 66 mass graves have been discovered in various regions, such as Rif Dimashq, northern Homs and Hama.[3] The Forensic Identification Center (SIC) in Damascus, with branches in Aleppo and Suwayd, accepts remains for identification, such as from Tadamon, but lacks experts.[3] The ICRC provides the center with technical expertise, equipment and training to improve the records and protection of graves.[2] Marks of torture and forensic dentistry serve as key clues in identification.[1] A lack of forensic odontology, expertise, and records is hindering progress.[4]