Marines treated at Camp Lejeune for post-traumatic stress had to undergo therapy for months in temporary trailers where they could hear bomb blasts, machine-gun fire and war cries through the thin walls, according to servicemen and their former psychiatrist. The eight trailers were used for nearly two years, until a permanent clinic was completed in September in another location on the base, said a Camp Lejeune medical spokesman, Navy Lt. j.g. Mark Jean-Pierre. The noise from training exercises "shook me up real bad. I couldn't take it. I almost ran out of there a couple of times," said a Marine patient who spoke on condition of anonymity because he is not authorized to talk to the media. "My mind couldn't focus on the treatment. I couldn't tell the difference between the combat zone and the non-combat zone."