- Included are volunteers who participated in WRAIR 813 (HSRRB Log # 9768.1) and those who participated in another CL study in/around the WRAIR 813 study site who had been assigned to a "no-treatment" (natural healing) arm. All volunteers will have had documented CL in the past that were treated with WR279396, vehicle, or no treatment (natural history), have signed informed consent, and are willing to comply with study assessments; age range: 5 to 75 years old.