Population The population will be composed of patients victims of anti-personnel landmines, who have had one of their lower limbs amputated and display classical symptoms of PLP. The patients will be recruited from the physical rehabilitation service at the Hospital Universitario de Santander (HUS), Bucaramanga, Colombia and local Non-Governmental Organizations (NGOs). Those who consent to participate, fulfill screening criteria and don't present any exclusion criteria will be included in the study.