The Pain Clinic and Cancer Pain Treatment.- The WHO Concept of Cancer Pain Treatment: A Guideline Prototype and Its Context.- Systemic Opiate Treatment.- Spinal Opioid Treatment for Chronic Pain: An Update.- Surgical Techniques in the Treatment of Pain.- Interpleural Pain Treatment.- Percutaneous Dorsal Root Ganglia Lesions for Cancer Pain.- Peptides for Analgesia: Intrathecal Administration.- Biostimulation Techniques for Cancer Pain Management.