A survey investigating 12,000 cases of alleged SRA found that most were diagnosed with DID as well as post-traumatic stress disorder. The level of dissociation in a sample of women alleging SRA was found to be higher than a comparable sample of non-SRA peers, approaching the levels shown by patients diagnosed with DID. A sample of patients diagnosed with DID and reporting childhood SRA also present other symptoms including "dissociative states with satanic overtones, severe post-traumatic stress disorder, survivor guilt, bizarre self abuse, unusual fears, sexualization of sadistic impulses, indoctrinated beliefs, and substance abuse." Commenting on the study, Philip Coons stated that patients were held together in a ward dedicated to dissociative disorders with ample opportunity to socialize, and that the memories were recovered through the use of hypnosis (which he considered questionable). No cases were referred to law enforcement for verification, nor was verification attempted through family members. Coons also pointed out that existing injuries could have been self-inflicted, that the experiences reported were "strikingly similar" and that "many of the SRA reports developed while patients were hospitalized." The reliability of memories of DID clients who alleged SRA in treatment has been questioned and a point of contention in the popular media and with clinicians; many of the allegations made are fundamentally impossible and alleged survivors lack the physical scars that would result were their allegations true.