Etiology and Mechanisms of Chronic Abdominal Pain -- The Epidemiology of Chronic Abdominal Pain.- Establishing Diagnosis of Chronic Abdominal Pain: Gastroenterologist View.- Establishing Diagnosis of Chronic Abdominal Pain: Pain Medicine view.- Lessons Learned from Visceral Sensory Stimulation: Implications for Treatment of Chronic Abdominal Pain -- Abdominal Pain in Irritable Bowel Syndrome (IBS) -- Gastroparesis: Pathophysiology of Chronic Abdominal Pain and Current Treatment -- Chronic Pain Due to Postsurgical Intra-Abdominal Adhesions: Therapeutic Options -- Chronic Pancreatitis with or without Acute Exacerbations: Novel Options for Pain Control -- Chronic Abdominal Pain of Gynecologic Causes: Diagnosis and Treatment -- Pediatric Chronic Abdominal Pain: Etiology, Diagnosis and Treatment -- Interventional Treatment of Chronic Abdominal Pain in Children -- Cancer-Related Abdominal Pain -- Opioids in Abdominal Pain -- Sympathetic Blocks for Chronic Abdominal Pain -- Radiofrequency and Neurolysis for the Treatment of Chronic Visceral Abdominal Pain -- Regional Anesthesia for Abdominal/Truncal Pain -- Chronic Abdominal Wall Pain: Diagnosis and Interventional Treatment -- Spinal Cord Stimulation for Chronic Abdominal Pain -- Peripheral Nerve Stimulation for Chronic Abdominal Pain -- Gastric and other Visceral Stimulation for Chronic Painful Gastrointestinal Motility Disorders -- Intrathecal Therapy for Non-malignant and Malignant Abdominal Pain -- Surgical Options for Chronic Visceral Abdominal Pain -- Neurosurgical Options for Control of Chronic and Malignant Abdominal Pain -- Psychological Determinants and Treatments for Chronic Abdominal Pain.