Children are treated for post-traumatic stress disorder at a refugee camp in the tsunami-hit city of Banda Aceh. Andiansyah,a four-year-old boy, attends a session at a smiling school, as part of a programme to treat post-traumatic stress disorder (PTSD), at a refugee camp in the tsunami-hit city of Banda Aceh on the Indonesian island of Sumatra January 17, 2005. The injured boy had lost his mother during the tsunami. REUTERS/Kimimasa Mayama